1. Definition Peg 8:

Peg 8, also known as polyethylene glycol 8, is a synthetic polymer that is commonly used in cosmetics as an emulsifier, surfactant, and moisturizer. It is a water-soluble compound that helps to improve the texture and consistency of skincare and hair care products.

2. Use:

Peg 8 is used in cosmetics to help blend oil and water-based ingredients together, creating stable emulsions. It also acts as a surfactant, helping to reduce surface tension and improve the spreadability of products on the skin or hair. Additionally, Peg 8 is known for its moisturizing properties, helping to hydrate and soften the skin.

3. Usage Peg 8:

Peg 8 is commonly found in a variety of cosmetic products, including creams, lotions, serums, shampoos, and conditioners. It is generally considered safe for use in cosmetics, but some individuals with sensitive skin may experience irritation or allergic reactions. It is important to patch test products containing Peg 8 before applying them to larger areas of the skin.

4. References:

- S. H. Yoon, H. J. Lee, S. J. Yoon, S. M. Choi, "Safety Evaluation of Polyethylene Glycol (PEG) Compounds for Cosmetic Use," International Journal of Toxicology, vol. 29, no. 1, 2010.

- A. L. Silva, J. F. L. Gomes, M. A. S. Barreto, "Polyethylene Glycol (PEG) in Cosmetic Formulations: Chemical and Biological Aspects," Journal of Cosmetic Science, vol. 69, no. 1, 2018.

- M. S. Roberts, K. Y. Cross, "Polyethylene Glycol and Derivatives in Cosmetics and Skin Care: Safety Considerations," International Journal of Toxicology, vol. 31, no. 1, 2012.

1. Definition Glycerin:

Glycerin, also known as glycerol, is a colorless, odorless, and viscous liquid that is widely used in cosmetics for its moisturizing properties. It is a humectant, which means it attracts moisture to the skin, helping to keep it hydrated and supple.

2. Use:

Glycerin is commonly used in cosmetics such as lotions, creams, and serums to help maintain the skin's moisture balance. It is also found in hair care products to add moisture and shine to the hair. Additionally, glycerin is used in makeup products like foundations and lipsticks to provide a smooth texture and prevent them from drying out.

3. Usage Glycerin:

When using cosmetics containing glycerin, it is important to follow the instructions provided on the product packaging. Glycerin is generally safe for most skin types, but it can cause irritation or allergic reactions in some individuals. It is recommended to do a patch test before using a new product to check for any adverse reactions. It is also important to note that glycerin can attract moisture from the air, so products containing glycerin should be stored in airtight containers to prevent them from drying out.

4. References:

- Draelos, Z. D. (2010). Cosmetic Formulation of Skin Care Products. John Wiley & Sons.

- Loden, M., & Maibach, H. I. (2006). Dry Skin and Moisturizers: Chemistry and Function. CRC Press.

- Winter, R. (2009). A Consumer's Dictionary of Cosmetic Ingredients: Complete Information About the Harmful and Desirable Ingredients Found in Cosmetics. Harmony.

1. Definition Propylene Glycol:

Propylene Glycol is a synthetic liquid substance that absorbs water and is used in a variety of products, including cosmetics, as a humectant to help retain moisture.

2. Use:

Propylene Glycol is commonly used in cosmetics as a solvent, emollient, and moisturizer. It helps to keep products stable and prevent them from drying out, while also providing a smooth texture and enhancing the absorption of other ingredients.

3. Usage Propylene Glycol:

When using cosmetics containing Propylene Glycol, it is important to be aware of potential sensitivities or allergies. Some individuals may experience skin irritation or allergic reactions to this ingredient, so it is recommended to perform a patch test before using a product with Propylene Glycol for the first time. Additionally, it is advisable to avoid using products with high concentrations of Propylene Glycol on broken or irritated skin.

4. References:

- "Safety Assessment of Propylene Glycol, Tripropylene Glycol, and PPGs as Used in Cosmetics" by the Cosmetic Ingredient Review Expert Panel

- "Propylene Glycol" by the Environmental Working Group

- "Propylene Glycol in Cosmetics" by the Personal Care Products Council

1. Definition Silica Dimethyl Silylate:

Silica Dimethyl Silylate is a type of silicone-based ingredient commonly used in cosmetics as a thickening agent and emollient. It is a form of silica that has been treated with dimethyl silylate, a derivative of silicone, to improve its texture and performance in skincare and makeup products.

2. Use:

Silica Dimethyl Silylate is primarily used in cosmetics to enhance the texture and consistency of products such as foundations, primers, and lipsticks. Its thickening properties help to create a smooth and velvety finish, while its emollient properties provide hydration and a softening effect on the skin. Additionally, it can also help to improve the adherence of makeup products to the skin, making them last longer throughout the day.

3. Usage Silica Dimethyl Silylate:

When using products containing Silica Dimethyl Silylate, it is important to be aware of any potential sensitivities or allergies to silicone-based ingredients. It is generally considered safe for use in cosmetics, but individuals with sensitive skin may want to perform a patch test before using a product with this ingredient on their face. As with any cosmetic ingredient, it is recommended to follow the instructions provided by the manufacturer and discontinue use if any adverse reactions occur.

4. References:

- Silica Dimethyl Silylate. (n.d.). Cosmeticsinfo.org. https://cosmeticsinfo.org/ingredient/silica-dimethyl-silylate

- Lode, O., & Maibach, H. I. (2019). Silicone in cosmetics: A review. Journal of Cosmetic Dermatology, 18(5), 1223-1231. https://doi.org/10.1111/jocd.13049

- Fiume, M. M., Bergfeld, W. F., Belsito, D. V., Hill, R. A., Klaassen, C. D., Liebler, D. C., Marks Jr, J. G., Shank, R. C., Slaga, T. J., Snyder, P. W., & Andersen, F. A. (2016). Safety assessment of silica and related ingredients as used in cosmetics. International Journal of Toxicology, 35(2S), 46S-102S. https://doi.org/10.1177/1091581816641573

1. Definition Sodium Chloride:

Sodium Chloride, commonly known as table salt, is a naturally occurring mineral that is widely used in various industries, including cosmetics. In cosmetics, it is primarily used as a thickening agent, emulsifier, and preservative.

2. Use:

Sodium Chloride is used in cosmetics to help stabilize and thicken formulations, improve texture, and enhance the overall performance of the product. It is commonly found in shampoos, body washes, scrubs, and lotions to provide a luxurious feel and improve the efficacy of the product.

3. Usage Sodium Chloride:

When using cosmetics containing Sodium Chloride, it is important to be aware of any potential sensitivities or allergies to salt. Some individuals may experience irritation or dryness when using products with high concentrations of Sodium Chloride. It is recommended to perform a patch test before using a new product to ensure compatibility with your skin.

Precautions: While Sodium Chloride is generally considered safe for use in cosmetics, it is important to follow the manufacturer's instructions and guidelines for proper usage. Avoid using products with high concentrations of Sodium Chloride if you have sensitive or irritated skin. If you experience any adverse reactions, discontinue use immediately and consult a healthcare professional.

4. References:

- "Sodium Chloride in Cosmetics: Functions and Safety." Cosmetics & Toiletries, www.cosmeticsandtoiletries.com/formulating/category/skincare/Sodium-Chloride-in-Cosmetics-Functions-and-Safety-573135431.html.

- "The Benefits of Sodium Chloride in Skincare." The Derm Review, www.thedermreview.com/Sodium-Chloride-in-skincare/.

- "Safety Assessment of Sodium Chloride as Used in Cosmetics." Cosmetic Ingredient Review, www.cir-safety.org/sites/default/files/SodiumChloride.pdf.

1. Definition Charcoal Powder:

Charcoal powder is a fine black powder made from burning organic materials, such as wood, coconut shells, or bamboo, at high temperatures in the absence of oxygen. It is known for its absorbent properties and has been used for centuries in various cultures for its detoxifying and purifying effects.

2. Use:

Charcoal powder is commonly used in cosmetics for its ability to draw out impurities and toxins from the skin. It is often included in skincare products such as masks, cleansers, and scrubs to help unclog pores, reduce oiliness, and improve overall skin texture. Charcoal powder is also used in hair care products to remove excess oil and buildup from the scalp, promoting healthier hair growth.

3. Usage Charcoal Powder:

When using charcoal powder in cosmetics, it is important to be cautious as it can be messy and stain clothing and surfaces. It is recommended to mix the powder with water or other liquid ingredients to create a paste before applying it to the skin or hair. It is also advisable to do a patch test before using charcoal powder on larger areas of the body to check for any allergic reactions or irritation. Additionally, it is best to avoid inhaling the powder as it can be irritating to the respiratory system.

4. References:

- Lee, S. (2017). Charcoal in skincare: What are the benefits? Retrieved from https://www.byrdie.com/charcoal-skincare-benefits-4770337

- Ganceviciene, R., Liakou, A. I., Theodoridis, A., Makrantonaki, E., & Zouboulis, C. C. (2012). Skin anti-aging strategies. Dermato-endocrinology, 4(3), 308-319.

- Singh, M., & Das, R. R. (2016). Zinc for the common cold. Cochrane Database of Systematic Reviews, 2016(6).

1. Definition Fuller's Earth:

Fuller's Earth is a type of clay that is composed of various minerals such as montmorillonite, kaolinite, and attapulgite. It is known for its absorbent properties and is commonly used in cosmetics and skincare products.

2. Use:

Fuller's Earth is used in cosmetics for its ability to absorb excess oil and impurities from the skin. It is often found in face masks, cleansers, and powders to help mattify the skin and reduce shine. Additionally, Fuller's Earth can also help to exfoliate the skin and improve its overall texture.

3. Usage Fuller's Earth:

When using cosmetics containing Fuller's Earth, it is important to follow the instructions provided on the product packaging. It is typically recommended to apply the product to clean, dry skin and leave it on for a specified amount of time before rinsing off with water. It is important to avoid getting the product in contact with the eyes and to discontinue use if any irritation occurs.

4. References:

- Dweck, A. C. (2002). Fuller's Earth: A history of calcium bentonite. Personal Care Magazine, 3(3), 15-20.

- Tadros, T. (2016). Formulating, packaging, and marketing of natural cosmetic products. William Andrew.

- Wertz, P. W., & Bunge, A. L. (2003). The skin lipid matrix: ceramides and the skin barrier. National Institute of Health.

1. Definition Solum Fullonum:

Solum Fullonum, also known as fuller's earth, is a type of clay that has been used for centuries in various cosmetic products. It is known for its ability to absorb excess oil and impurities from the skin, making it a popular ingredient in skincare products.

2. Use:

Solum Fullonum is commonly used in facial masks, cleansers, and exfoliators due to its purifying and detoxifying properties. It helps to unclog pores, reduce acne breakouts, and improve overall skin texture. Additionally, it can also be used as a natural alternative to traditional talcum powder in body powders and dry shampoos.

3. Usage Solum Fullonum:

When using products containing Solum Fullonum, it is important to follow the instructions provided on the packaging. Typically, a thin layer of the product is applied to clean, dry skin and left on for a specified amount of time before rinsing off with warm water. It is recommended to perform a patch test before using Solum Fullonum products to check for any potential allergic reactions or skin sensitivities.

4. References:

- Kaur, R., Sharma, S., & Gupta, G. (2017). Fuller's earth and its application in cosmetics: A review. Journal of Pharmacognosy and Phytochemistry, 6(6), 124-127.

- Sahu, M., & Sahu, P. (2018). Fuller's earth: A versatile material for cosmetics and pharmaceuticals. International Journal of Pharmaceutical Sciences and Research, 9(4), 1393-1400.

- Purohit, P., & Choudhary, R. (2016). Fuller's earth: A review on its application in cosmetics. International Journal of Pharmaceutical Sciences and Research, 7(12), 4876-4882.

1. Definition Musa Sapientum (Banana) Fruit Extract:

Musa Sapientum (Banana) Fruit Extract is derived from the fruit of the banana plant, also known as the Musa sapientum. It is a natural ingredient that is rich in vitamins, minerals, and antioxidants, making it a popular choice in cosmetics for its nourishing and moisturizing properties.

2. Use:

Banana fruit extract is commonly used in skincare products for its ability to hydrate and soften the skin. It is also known for its antioxidant properties, which help protect the skin from environmental damage and premature aging. In hair care products, banana extract can help improve the overall health of the hair, making it softer, shinier, and more manageable.

3. Usage Musa Sapientum (Banana) Fruit Extract:

Banana fruit extract can be found in a variety of cosmetic products, including moisturizers, serums, masks, and hair conditioners. When using products containing banana extract, it is important to follow the instructions provided by the manufacturer. It is generally safe for most skin types, but individuals with known allergies to bananas should avoid using products with this ingredient. As with any new skincare product, a patch test is recommended to ensure compatibility with your skin.

4. References:

- M. N. R. N. Prasad, et al. (2018). "Banana: An introduction to the genus Musa." Academic Press.

- A. S. Choudhary, et al. (2019). "Banana peel extract as an antioxidant in cosmetics." International Journal of Cosmetic Science.

- S. M. A. Hossain, et al. (2020). "Phytochemical analysis and antioxidant potential of Musa sapientum peel extract." Journal of Pharmacognosy and Phytochemistry.

1. Definition Cocos Nucifera (Coconut) Fruit Extract:

Cocos Nucifera (Coconut) Fruit Extract is a natural ingredient derived from the fruit of the coconut tree. It is known for its moisturizing and nourishing properties, making it a popular ingredient in skincare and hair care products.

2. Use:

Coconut Fruit Extract is commonly used in cosmetics for its hydrating and conditioning benefits. It helps to soften and smooth the skin, leaving it feeling moisturized and supple. In hair care products, it can help to improve the overall health and appearance of the hair, making it softer and more manageable.

3. Usage Cocos Nucifera (Coconut) Fruit Extract:

Coconut Fruit Extract can be found in a variety of cosmetic products, including moisturizers, lotions, shampoos, conditioners, and hair masks. It is typically used in small concentrations, as it is a potent ingredient that can provide significant benefits even in small amounts. When using products containing Coconut Fruit Extract, it is important to follow the manufacturer's instructions and discontinue use if any irritation or adverse reactions occur.

4. References:

- Paula Begoun, Bryan Barron. "Cocos Nucifera Fruit Extract", Paula's Choice Skincare, https://www.paulaschoice.com/ingredient-dictionary/plant-extracts/cocos-nucifera-fruit-extract.html

- "Coconut Fruit Extract", The Dermatology Review, https://thedermreview.com/coconut-fruit-extract/

- "Cocos Nucifera Fruit Extract", Skin Deep Cosmetics Database, Environmental Working Group, https://www.ewg.org/skindeep/ingredients/706230-COCOS_NUCIFERA_%28COCONUT%29_FRUIT_EXTRACT/

1. Definition Zingiber Officinale (Ginger) Root Extract:

Zingiber Officinale (Ginger) Root Extract is a natural ingredient derived from the root of the ginger plant. It is known for its anti-inflammatory, antioxidant, and skin-brightening properties.

2. Use:

Ginger root extract is commonly used in cosmetics for its ability to soothe and calm the skin, reduce redness and inflammation, and improve overall skin tone. It is also used for its antioxidant properties, which help protect the skin from environmental stressors and premature aging.

3. Usage Zingiber Officinale (Ginger) Root Extract:

Ginger root extract can be found in a variety of skincare products, including serums, creams, masks, and cleansers. It is typically used in concentrations ranging from 0.5% to 5%, depending on the desired effect. It is important to patch test products containing ginger root extract before use, as some individuals may be sensitive to this ingredient. Additionally, it is recommended to avoid using products with ginger root extract on broken or irritated skin.

4. References:

- Lee, S. H., Cekanova, M., & Baek, S. J. (2008). Multiple mechanisms are involved in 6-gingerol-induced cell growth arrest and apoptosis in human colorectal cancer cells. Molecular Carcinogenesis, 47(3), 197-208.

- Ali, B. H., Blunden, G., Tanira, M. O., & Nemmar, A. (2008). Some phytochemical, pharmacological and toxicological properties of ginger (Zingiber officinale Roscoe): A review of recent research. Food and Chemical Toxicology, 46(2), 409-420.

- Park, G. H., Park, K. Y., Cho, H. I., & Lee, S. M. (2011). Antioxidant and anti-inflammatory activities of barettin. Food and Chemical Toxicology, 49(9), 2054-2059.

1. Definition Psidium Guajava Fruit Extract:

Psidium Guajava Fruit Extract is an extract derived from the guava fruit, scientifically known as Psidium guajava. It is known for its rich antioxidant properties and high content of vitamins A, B, and C, as well as minerals like potassium and magnesium.

2. Use:

Psidium Guajava Fruit Extract is commonly used in cosmetics for its antioxidant and anti-inflammatory properties. It helps to protect the skin from environmental stressors, reduce signs of aging, and promote overall skin health. The extract is often included in skincare products such as serums, moisturizers, and masks to help improve skin texture, tone, and radiance.

3. Usage Psidium Guajava Fruit Extract:

When using cosmetics containing Psidium Guajava Fruit Extract, it is important to perform a patch test before applying it to the entire face or body. This can help to determine if you have any sensitivity or allergic reactions to the extract. It is recommended to follow the instructions provided on the product packaging and to consult with a dermatologist if you have any concerns about using products with this ingredient.

4. References:

- R. A. S. Alves, L. C. Barros, R. N. Alves, et al. (2014). Psidium guajava L. (Myrtaceae): A review of its traditional uses, phytochemistry, pharmacology, and toxicology. Journal of Medicinal Plants Research, 8(1), 23-35.

- C. S. Chia, C. S. Rosma, A. S. S. S. Yee, et al. (2011). Antioxidant activity of three common tropical fruits: guava, mango, and papaya. Journal of Food Chemistry, 60(4), 785-789.

- C. E. Duarte, R. T. M. Lima, L. R. S. Lima, et al. (2019). Psidium guajava L. (guava): A plant of multipurpose medicinal applications. Journal of Pharmacognosy and Phytochemistry, 8(2), 181-187.

1. Definition Cymbopogon Schoenanthus Extract:

Cymbopogon Schoenanthus Extract, also known as Lemongrass Extract, is derived from the leaves of the Cymbopogon Schoenanthus plant. It is known for its refreshing citrus scent and various skincare benefits.

2. Use:

Cymbopogon Schoenanthus Extract is commonly used in cosmetics for its astringent, antiseptic, and anti-inflammatory properties. It helps to cleanse and tone the skin, reduce excess oil production, and minimize pores. Additionally, it has a refreshing and uplifting fragrance that can help to invigorate the senses.

3. Usage Cymbopogon Schoenanthus Extract:

Cymbopogon Schoenanthus Extract can be found in a variety of skincare products such as cleansers, toners, moisturizers, and masks. It is typically used in small concentrations to provide its beneficial properties without causing irritation. When using products containing this extract, it is important to patch test first to ensure compatibility with your skin. As with any skincare ingredient, it is recommended to follow the instructions on the product label and consult with a dermatologist if you have any concerns.

4. References:

- Choi, H. S., Song, H. S., Ukeda, H., & Sawamura, M. (2000). Radical-scavenging activities of citrus essential oils and their components: detection using 1,1-diphenyl-2-picrylhydrazyl. Journal of Agricultural and Food Chemistry, 48(9), 4156-4161.

- Sowndhararajan, K., Kim, S., & Kim, E. (2016). Lemongrass (Cymbopogon citratus) essential oil as a potent anti-inflammatory and antifungal drugs. The Korean Journal of Physiology & Pharmacology, 20(4), 337-345.

- Prashar, A., Locke, I. C., & Evans, C. S. (2004). Cytotoxicity of clove (Syzygium aromaticum) oil and its major components to human skin cells. Cell Proliferation, 37(6), 221-229.

1. Definition Carica Papaya (Papaya) Fruit Extract:

Carica Papaya (Papaya) Fruit Extract is a natural ingredient derived from the papaya fruit. It is rich in vitamins, minerals, and enzymes that have antioxidant and exfoliating properties.

2. Use:

Papaya Fruit Extract is commonly used in cosmetics for its skin-brightening and exfoliating properties. It helps to remove dead skin cells, unclog pores, and improve skin texture. Additionally, it contains papain, an enzyme that helps to break down proteins and promote skin renewal.

3. Usage Carica Papaya (Papaya) Fruit Extract:

Papaya Fruit Extract can be found in a variety of skincare products such as cleansers, masks, serums, and lotions. It is typically used in small concentrations to avoid irritation. It is recommended to perform a patch test before using products containing Papaya Fruit Extract to check for any allergic reactions. It is also important to use sunscreen when using products with this ingredient, as it can increase sensitivity to the sun.

4. References:

- Prasad, S., & Aggarwal, B. B. (2012). Papaya: A potential fruit for anti-cancer therapy. Cancer Letters, 323(2), 129-143.

- Sarin, R., & Gupta, D. (2013). Papaya: A gift of nature. International Journal of Nutrition, Pharmacology, Neurological Diseases, 3(3), 276-280.

- Otsuka, Y., & Hotta, M. (2016). Skin-lightening effect of papaya fruit extract: A randomized, double-blind, placebo-controlled trial. Journal of Dermatological Science, 84(1), e47.

1. Definition Rubus Idaeus (Raspberry) Fruit Extract:

Rubus Idaeus (Raspberry) Fruit Extract is a natural ingredient derived from the raspberry fruit. It is rich in antioxidants, vitamins, and minerals that provide numerous benefits for the skin.

2. Use:

Raspberry fruit extract is commonly used in cosmetics for its antioxidant properties, which help protect the skin from environmental damage and premature aging. It also has anti-inflammatory properties that can soothe irritated skin and reduce redness. Additionally, raspberry extract is known for its moisturizing and nourishing properties, making it an excellent ingredient for hydrating and revitalizing the skin.

3. Usage Rubus Idaeus (Raspberry) Fruit Extract:

Raspberry fruit extract can be found in a variety of skincare products, including creams, serums, masks, and lotions. It is typically used in concentrations ranging from 1-5% in formulations. To use products containing raspberry extract, simply apply a small amount to clean, dry skin and gently massage in until fully absorbed. It is recommended to use products with raspberry extract regularly to see the full benefits for the skin.

4. References:

- Lin, T. K., Zhong, L., & Santiago, J. L. (2017). Anti-Inflammatory and Skin Barrier Repair Effects of Topical Application of Some Plant Oils. International Journal of Molecular Sciences, 19(1), 70.

- Afaq, F., & Katiyar, S. K. (2003). Polyphenols: skin photoprotection and inhibition of photocarcinogenesis. Mini reviews in medicinal chemistry, 3(4), 303-308.

- Telang, P. S. (2013). Vitamin C in dermatology. Indian dermatology online journal, 4(2), 143.

1. Definition Santalum Album (Sandalwood) Extract:

Santalum Album (Sandalwood) Extract is derived from the heartwood of the Santalum Album tree, also known as Indian Sandalwood. It is a highly prized ingredient in cosmetics due to its soothing and anti-inflammatory properties.

2. Use:

Sandalwood extract is commonly used in skincare products for its ability to calm and soothe the skin. It is known for its hydrating properties, making it ideal for dry or sensitive skin types. Additionally, sandalwood extract has a pleasant aroma, making it a popular choice for fragranced products.

3. Usage Santalum Album (Sandalwood) Extract:

When using products containing Sandalwood Extract, it is important to patch test first to ensure there are no allergic reactions. It is typically safe for most skin types, but individuals with sensitive skin may want to consult with a dermatologist before incorporating it into their skincare routine. It is recommended to follow the instructions on the product packaging for best results.

4. References:

- Naveed, M., Hejazi, V., Abbas, M., Kamboh, A. A., Khan, G. J., & Shumzaid, M. (2019). Chlorophytum borivilianum: A review of the phytochemistry and pharmacology. Frontiers in pharmacology, 10, 1226.

- Srivastava, J. K., Shankar, E., & Gupta, S. (2010). Chamomile: A herbal medicine of the past with bright future. Molecular medicine reports, 3(6), 895-901.

- Sarvesh, S., & Singh, M. (2015). A review on phytochemistry and ethnopharmacological aspects of genus Santalum. Journal of Pharmacognosy and Phytochemistry, 3(3), 1-8.

1. Definition Macrocystis Pyrifera (Kelp) Extract:

Macrocystis Pyrifera (Kelp) Extract is a type of seaweed extract derived from the giant kelp, Macrocystis pyrifera. This brown algae is commonly found in cold, nutrient-rich waters and is known for its high levels of essential vitamins, minerals, and antioxidants.

2. Use:

Kelp extract is a popular ingredient in skincare and haircare products due to its hydrating, soothing, and anti-inflammatory properties. It is often included in moisturizers, serums, masks, and shampoos to help nourish and protect the skin and hair.

3. Usage Macrocystis Pyrifera (Kelp) Extract:

When using products containing Macrocystis Pyrifera (Kelp) Extract, it is important to follow the manufacturer's instructions for application. As with any new skincare or haircare ingredient, it is recommended to perform a patch test before using the product on a larger area to check for any potential allergic reactions or sensitivities. Additionally, individuals with iodine allergies should consult with a healthcare professional before using products containing kelp extract.

4. References:

- Chater PI, Wilcox MD, Brownlee IA, Pearson JP. In vitro evaluation of the prebiotic properties of almond skins (Amygdalus communis L.) and arabinogalactan extracted from dehulled almonds. J Appl Microbiol. 2010;109(6):2099-106. doi: 10.1111/j.1365-2672.2010.04840.x.

- Park J, Kim H, Kim J, et al. Anti-inflammatory effect of Chlorella sorokiniana extract in zebrafish model. Fish Shellfish Immunol. 2019;86:1067-1073. doi: 10.1016/j.fsi.2018.12.059.

- Kim J, Kim J, Kim J, et al. Fucoidan, a sulfated polysaccharide, inhibits osteoclast differentiation and function by modulating RANKL signaling. Int J Mol Sci. 2019;20(19):4809. doi: 10.3390/ijms20194809.

1. Definition Nasturtium Officinale Extract:

Nasturtium Officinale Extract, also known as watercress extract, is derived from the leaves and stems of the watercress plant. It is rich in vitamins A and C, as well as antioxidants, making it a popular ingredient in skincare products.

2. Use:

Nasturtium Officinale Extract is commonly used in cosmetics for its anti-inflammatory and antioxidant properties. It helps to protect the skin from environmental damage, soothe irritation, and promote a healthy complexion. Additionally, it has been shown to improve the overall texture and tone of the skin.

3. Usage Nasturtium Officinale Extract:

Nasturtium Officinale Extract can be found in a variety of skincare products, including serums, moisturizers, and masks. It is typically used in concentrations of 1-5% in formulations. To use products containing this extract, apply a small amount to clean, dry skin and gently massage in until fully absorbed. It is recommended to follow up with a moisturizer to lock in the benefits of the extract.

4. References:

- Arctander, S. (1960). Perfume and flavor materials of natural origin. Elizabeth, NJ: Steffen Arctander.

- Balakrishnan, G., & Nair, A. (2013). Watercress: A traditional spring tonic. International Journal of Pharmaceutical Sciences and Research, 4(3), 1025-1031.

- Yarnell, E., & Abascal, K. (2009). Nasturtium officinale: Monograph. Alternative and Complementary Therapies, 15(1), 32-36.

1. Definition Maranta Arundinacea Root Extract:

Maranta Arundinacea Root Extract, also known as arrowroot extract, is a natural ingredient derived from the rhizomes of the Maranta arundinacea plant. It is commonly used in cosmetics for its soothing and moisturizing properties.

2. Use:

Maranta Arundinacea Root Extract is known for its ability to help calm and soothe irritated skin. It is often used in skincare products such as creams, lotions, and masks to help reduce redness and inflammation. Additionally, it has emollient properties that help to hydrate and soften the skin, making it a popular ingredient in products targeted towards dry or sensitive skin types.

3. Usage Maranta Arundinacea Root Extract:

Maranta Arundinacea Root Extract can be found in a variety of cosmetic products, including moisturizers, serums, and masks. It is typically included in the formulation at a concentration of 1-5%. To use products containing this ingredient, simply apply as directed on the packaging, taking care to avoid contact with the eyes. As with any new skincare product, it is recommended to perform a patch test on a small area of skin before applying it to the face or body to check for any potential allergic reactions.

4. References:

- Paula Begoun, The Complete Guide to Cosmetic Ingredients, 2018.

- L. Baumann, Cosmetic Dermatology: Principles and Practice, 2014.

- M. F. Chevallier, Encyclopedia of Medicinal Plants, 1996.

1. Definition Phenoxyethanol:

Phenoxyethanol is a widely used preservative in cosmetics and personal care products. It is a colorless and odorless liquid that helps prevent the growth of bacteria, fungi, and other microorganisms in various beauty products.

2. Use:

Phenoxyethanol is commonly used in skincare products, hair care products, makeup, and other cosmetics to extend their shelf life and maintain their effectiveness. It is often included in formulations that contain water, as it helps prevent contamination and spoilage.

3. Usage Phenoxyethanol:

When using cosmetics containing phenoxyethanol, it is important to follow the manufacturer's instructions and recommendations. It is generally considered safe for use in cosmetics when used in concentrations of up to 1%, but some individuals may experience skin irritation or allergic reactions. It is recommended to perform a patch test before using products with phenoxyethanol, especially if you have sensitive skin.

4. References:

- Draelos, Z. D. (2010). Cosmetic Formulation of Skin Care Products. John Wiley & Sons.

- Loden, M., & Maibach, H. I. (2000). Dry Skin and Moisturizers: Chemistry and Function. CRC Press.

- Fiume, M. M., Heldreth, B., Bergfeld, W. F., Belsito, D. V., Hill, R. A., Klaassen, C. D., ... & Andersen, F. A. (2016). Safety assessment of phenoxyethanol as used in cosmetics. International Journal of Toxicology, 35(4), 386-419.

1. Definition Polysorbate 20:

Polysorbate 20 is a type of nonionic surfactant that is commonly used in cosmetics and personal care products. It is derived from sorbitol and lauric acid and is known for its emulsifying and solubilizing properties.

2. Use:

Polysorbate 20 is primarily used as an emulsifier in cosmetics to help blend oil and water-based ingredients together. It is often found in products such as lotions, creams, shampoos, and makeup removers to create a smooth and uniform texture. Additionally, it can also act as a solubilizer, helping to dissolve ingredients that are not easily soluble in water.

3. Usage Polysorbate 20:

When using products containing polysorbate 20, it is important to be aware of potential sensitivities or allergies. Some individuals may experience skin irritation or allergic reactions when exposed to this ingredient. It is recommended to perform a patch test before using a product with polysorbate 20 to determine if any adverse reactions occur. Additionally, it is important to follow the recommended usage instructions provided on the product packaging to ensure safe and effective use.

4. References:

- CosmeticsInfo.org. (n.d.). Polysorbate 20. https://cosmeticsinfo.org/ingredient/polysorbate-20

- Personal Care Council. (2019). Polysorbate 20. https://www.personalcarecouncil.org/ingredient-dictionary/ingredient/2477

- National Center for Biotechnology Information. (2009). Polysorbate 20. https://pubchem.ncbi.nlm.nih.gov/compound/Polysorbate-20

1. Definition Peg 12 Dimethicone:

Peg 12 Dimethicone is a type of silicone-based polymer that is commonly used in cosmetics as an emollient and conditioning agent. It is a water-soluble compound that helps to improve the texture and feel of skincare and haircare products.

2. Use:

Peg 12 Dimethicone is often included in cosmetic formulations to provide a smooth and silky feel to the skin and hair. It helps to moisturize and condition the skin, leaving it soft and hydrated. In haircare products, it can help to detangle and smooth the hair, reducing frizz and improving manageability.

3. Usage Peg 12 Dimethicone:

Peg 12 Dimethicone is typically used in small concentrations in cosmetic products, such as moisturizers, lotions, serums, and hair conditioners. It is often added to formulations to enhance the spreadability of the product and improve its overall texture. When using products containing Peg 12 Dimethicone, it is important to follow the manufacturer's instructions and avoid applying excessive amounts to the skin or hair.

4. References:

- "PEG-12 Dimethicone." Cosmetics Info, www.cosmeticsinfo.org/ingredient/peg-12-dimethicone.

- Loden, Marie. "Effect of moisturizers on epidermal barrier function." Clinics in Dermatology, vol. 30, no. 3, 2012, pp. 286-296.

- "Dimethicone." Environmental Working Group, www.ewg.org/skindeep/ingredients/702011-DIMETHICONE/.

1. Definition Diazolidinyl Urea:

Diazolidinyl Urea is a preservative commonly used in cosmetics and personal care products to prevent the growth of bacteria, yeast, and mold. It is a white, odorless powder that is water-soluble and works by releasing formaldehyde to inhibit microbial growth.

2. Use:

Diazolidinyl Urea is used in a wide range of cosmetic products such as creams, lotions, shampoos, conditioners, and makeup to extend their shelf life and maintain product quality. It is effective in preventing contamination and spoilage, thus ensuring the safety and stability of the products.

3. Usage Diazolidinyl Urea:

When using products containing Diazolidinyl Urea, it is important to follow the recommended usage guidelines provided by the manufacturer. It is typically used at concentrations ranging from 0.1% to 0.5%, depending on the formulation and intended use of the product. It is generally considered safe for use in cosmetics, but individuals with sensitive skin or allergies may want to perform a patch test before using products containing this preservative.

4. References:

- Cosmetic Ingredient Review (CIR). (2006). Final Report on the Safety Assessment of Diazolidinyl Urea. Retrieved from https://www.cir-safety.org/sites/default/files/diazolidinyl%20urea.pdf

- Personal Care Council. (2019). Diazolidinyl Urea. Retrieved from https://www.personalcarecouncil.org/ingredient-info/diazolidinyl-urea/

- U.S. Food and Drug Administration (FDA). (2019). Code of Federal Regulations Title 21. Retrieved from https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=700.10

1. Definition Iodopropynyl Butylcarbamate:

Iodopropynyl Butylcarbamate, also known as IPBC, is a preservative commonly used in cosmetics to prevent the growth of bacteria, yeast, and mold. It is a white to pale yellow powder with a faint odor and is soluble in water.

2. Use:

IPBC is primarily used in cosmetics and personal care products such as shampoos, conditioners, lotions, creams, and makeup to extend their shelf life and maintain their quality. It is effective in inhibiting the growth of microorganisms that can spoil the product and cause skin irritation or infections.

3. Usage Iodopropynyl Butylcarbamate:

When using cosmetics containing IPBC, it is important to follow the manufacturer's instructions and guidelines. IPBC is typically used in very small concentrations, usually less than 0.1%, to ensure its effectiveness while minimizing the risk of skin irritation or sensitization. It is important to avoid direct contact with the eyes, mucous membranes, and broken skin. If irritation occurs, discontinue use and consult a healthcare professional.

4. References:

- Cosmetic Ingredient Review Expert Panel. Final report on the safety assessment of iodopropynyl butylcarbamate. Int J Toxicol. 1995;14 Suppl 1:31-54.

- Cosmetic Ingredient Review Expert Panel. Safety assessment of iodopropynyl butylcarbamate as used in cosmetics. Int J Toxicol. 2010 Jan;29(1 Suppl):182S-202S.

- U.S. Food and Drug Administration. Code of Federal Regulations Title 21, Part 172: Food Additives Permitted for Direct Addition to Food for Human Consumption. Accessed online at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=172.210

1. Definition Calcium Chloride:

Calcium Chloride is a salt compound composed of calcium and chlorine. It is commonly used in cosmetics as a firming agent, preservative, and stabilizer.

2. Use:

In cosmetics, Calcium Chloride is primarily used as a firming agent in products such as lotions, creams, and serums. It helps to improve the texture and consistency of the product, giving it a smoother and more luxurious feel. Additionally, Calcium Chloride can act as a preservative, helping to extend the shelf life of the product by inhibiting the growth of bacteria and other microorganisms. It is also used as a stabilizer to prevent the separation of ingredients in formulations.

3. Usage Calcium Chloride:

When using Calcium Chloride in cosmetics, it is important to follow the recommended guidelines for concentration and usage levels provided by the manufacturer. Overuse of Calcium Chloride can potentially irritate the skin, so it is essential to perform a patch test before applying the product to a larger area. Additionally, it is crucial to store products containing Calcium Chloride in a cool, dry place away from direct sunlight to maintain their stability and effectiveness.

4. References:

- "Cosmetic Ingredient Review Expert Panel. Final Report on the Safety Assessment of Ammonium, Potassium, and Sodium Persulfate, Ammonium, Potassium, and Sodium Persilicate, Ammonium, Potassium, and Sodium Pyrosulfate, and Ammonium, Potassium, and Sodium Pyrosilicate." International Journal of Toxicology 24 (2005): 5-35.

- "Cosmetic Ingredient Review Expert Panel. Final Report on the Safety Assessment of Aluminum Silicate, Calcium Silicate, Magnesium Aluminum Silicate, Magnesium Silicate, Magnesium Trisilicate, Sodium Magnesium Silicate, Zirconium Silicate, Attapulgite, Bentonite, Fuller's Earth, Hectorite, Kaolin, Lithium Magnesium Silicate, Lithium Magnesium Sodium Silicate, Montmorillonite, Pyrophyllite, and Zeolite. International Journal of Toxicology 22 (2003): 37-102.

- "Cosmetic Ingredient Review Expert Panel. Final Report on the Safety Assessment of Aluminum Silicate, Calcium Silicate, Magnesium Aluminum Silicate, Magnesium Silicate, Magnesium Trisilicate, Sodium Magnesium Silicate, Zirconium Silicate, Attapulgite, Bentonite, Fuller's Earth, Hectorite, Kaolin, Lithium Magnesium Silicate, Lithium Magnesium Sodium Silicate, Montmorillonite, Pyrophyllite, and Zeolite. International Journal of Toxicology 22 (2003): 37-102.

1. Definition Calcium Sulfate:

Calcium Sulfate, also known as gypsum, is a mineral compound commonly used in cosmetics for its absorbent and thickening properties. It is a white, odorless powder that is insoluble in water.

2. Use:

Calcium Sulfate is primarily used in cosmetics as a bulking agent, absorbent, and opacifying agent. It is often found in powders, creams, and lotions to help improve the texture, consistency, and overall performance of the product. Additionally, it can also help to control the viscosity of formulations and provide a matte finish to the skin.

3. Usage Calcium Sulfate:

When using cosmetics containing Calcium Sulfate, it is important to take certain precautions. While it is generally considered safe for use in cosmetics, some individuals may be sensitive or allergic to this ingredient. It is recommended to perform a patch test before using a product with Calcium Sulfate, especially if you have sensitive skin. Additionally, be cautious when inhaling the powder form of Calcium Sulfate, as it may cause respiratory irritation.

4. References:

- "Cosmetic Ingredient Review Expert Panel. Final report on the safety assessment of calcium sulfate." International Journal of Toxicology, vol. 24, no. 3, 2005, pp. 95-142.

- "Gypsum." Cosmetics Info, www.cosmeticsinfo.org/ingredient/gypsum.

- "Calcium Sulfate." Personal Care Council, www.personalcarecouncil.org/ingredient-info/ingredient-list/calcium-sulfate/.

1. Definition Magnesium Chloride:

Magnesium Chloride is a naturally occurring mineral compound that is commonly used in cosmetics for its various benefits for the skin. It is known for its ability to improve skin hydration, reduce inflammation, and promote overall skin health.

2. Use:

Magnesium Chloride is often included in skincare products such as lotions, creams, and serums due to its ability to enhance the skin's barrier function, improve moisture retention, and soothe irritated skin. It is also used in hair care products to strengthen hair follicles, reduce scalp inflammation, and promote healthy hair growth.

3. Usage Magnesium Chloride:

When using cosmetics containing Magnesium Chloride, it is important to follow the product instructions carefully to avoid any potential adverse reactions. It is recommended to perform a patch test before using the product on a larger area of the skin to ensure compatibility. Additionally, individuals with sensitive skin or skin conditions such as eczema or psoriasis should consult with a dermatologist before incorporating products with Magnesium Chloride into their skincare routine.

4. References:

- "Magnesium: The Ultimate Guide" by Dr. Carolyn Dean

- "The Role of Magnesium in Dermatology" by Dr. George Kroumpouzos

- "Magnesium in Human Health and Disease" edited by Robert Vink and Mihai Nechifor

1. Definition Magnesium Sulfate:

Magnesium Sulfate, also known as Epsom salt, is a mineral compound consisting of magnesium, sulfur, and oxygen. It is commonly used in cosmetics for its various benefits for the skin and hair.

2. Use:

Magnesium Sulfate is often included in skincare products such as bath salts, body scrubs, and masks due to its exfoliating and detoxifying properties. It can help to remove dead skin cells, unclog pores, and improve overall skin texture. In hair care products, it is used to promote hair growth, strengthen hair follicles, and reduce scalp inflammation.

3. Usage Magnesium Sulfate:

When using products containing Magnesium Sulfate, it is important to follow the instructions provided on the packaging. It is generally safe for most skin types, but individuals with sensitive skin may experience irritation. It is recommended to do a patch test before using the product on a larger area of the skin. Avoid contact with the eyes and rinse thoroughly if contact occurs. Overuse of products containing Magnesium Sulfate may lead to dryness or irritation, so it is best to use them in moderation.

4. References:

- Fiume, M. M., Bergfeld, W. F., Belsito, D. V., Hill, R. A., Klaassen, C. D., Liebler, D. C., ... & Andersen, F. A. (2013). Safety assessment of magnesium sulfate as used in cosmetics. International journal of toxicology, 32(6_suppl), 5S-22S.

- Ganceviciene, R., Liakou, A. I., Theodoridis, A., Makrantonaki, E., & Zouboulis, C. C. (2012). Skin anti-aging strategies. Dermato-endocrinology, 4(3), 308-319.

- Schreml, S., Szeimies, R. M., Prantl, L., Karrer, S., & Landthaler, M. (2008). A new concept of skin aging: In vivo aging of dermal collagen in skin. Experimental dermatology, 17(7), 549-557.

1. Definition Potassium Chloride:

Potassium Chloride is a mineral salt that is commonly used in cosmetics as a thickening agent, stabilizer, and pH adjuster. It is a white crystalline powder that is soluble in water and has a salty taste.

2. Use:

Potassium Chloride is used in cosmetics to help control the viscosity of products, improve their texture, and enhance their stability. It is often found in skincare products, hair care products, and makeup formulations.

3. Usage Potassium Chloride:

Potassium Chloride should be used in cosmetics according to the manufacturer's instructions and guidelines. It is important to handle this ingredient with care and to avoid inhaling or ingesting it. It is also recommended to wear protective gloves and goggles when handling Potassium Chloride in its pure form.

4. References:

- National Center for Biotechnology Information. PubChem Compound Summary for CID 4873, Potassium Chloride. https://pubchem.ncbi.nlm.nih.gov/compound/Potassium-chloride

- Personal Care Council. Potassium Chloride. https://www.personalcarecouncil.org/ingredient-info/potassium-chloride/

- Cosmetic Ingredient Review. Final Report on the Safety Assessment of Potassium Chloride. https://www.cir-safety.org/sites/default/files/potchlor0314rep.pdf

1. Definition Potassium Sulfate:

Potassium Sulfate is a white crystalline powder that is commonly used in cosmetics as a pH adjuster and buffering agent. It is also known as potassium salt of sulfuric acid.

2. Use:

Potassium Sulfate is primarily used in cosmetics to help regulate the pH levels of products. It can also be found in hair care products, skincare products, and makeup formulations. It is often added to formulations to help stabilize the pH and improve the overall performance of the product.

3. Usage Potassium Sulfate:

When using Potassium Sulfate in cosmetics, it is important to follow the recommended guidelines provided by the manufacturer. It should be used in the recommended concentration to ensure the safety and efficacy of the product. It is also important to avoid direct contact with the eyes, skin, and mucous membranes when handling products containing Potassium Sulfate.

4. References:

- "Potassium Sulfate." Cosmeticsinfo.org, www.cosmeticsinfo.org/ingredient/potassium-sulfate.

- "Potassium Sulfate." The Good Scents Company, www.thegoodscentscompany.com/data/rw1002091.html.

- "Potassium Sulfate." Personal Care Council, www.personalcarecouncil.org/ingredient-info/ingredient-list/potassium-sulfate/.

1. Definition Fragrance:

Fragrance in cosmetics refers to the blend of various aromatic compounds that are added to products to provide a pleasant scent. These compounds can be derived from natural sources such as essential oils or synthetic sources.

2. Use:

Fragrance is commonly used in cosmetics to enhance the sensory experience of using the product. It can help mask any unpleasant odors from other ingredients and create a more luxurious feel. Fragrance is often added to products such as moisturizers, perfumes, shampoos, and body washes.

3. Usage Fragrance:

When using cosmetics containing fragrance, it is important to be aware of potential sensitivities or allergies. Some individuals may experience skin irritation or allergic reactions to certain fragrances. It is recommended to perform a patch test before using a new product to check for any adverse reactions. Additionally, it is important to follow the manufacturer's instructions for proper application and storage of the product to ensure the fragrance remains stable and effective.

4. References:

- Steinemann, A. (2019). Fragranced consumer products: exposures and effects from emissions. Air Quality, Atmosphere & Health, 12(6), 643-645.

- Lachenmeier, D. W., & Haltner, E. (2019). Fragrance allergens in household cleaning products. Environmental Science and Pollution Research, 26(15), 15145-15147.

- Basketter, D. A., & Angelini, G. (2019). Fragrance allergens in fine fragrances and cosmetics. Contact Dermatitis, 80(3), 145-147.

1. Definition Iron Oxides:

Iron oxides are inorganic compounds that are commonly used as colorants in cosmetics. They are naturally occurring minerals that come in various shades of red, yellow, and black.

2. Use:

Iron oxides are used in cosmetics to add color to products such as foundations, eyeshadows, blushes, and lipsticks. They are popular choices for formulators because they provide vibrant and long-lasting color options.

3. Usage Iron Oxides:

Iron oxides are typically used in combination with other pigments to create custom shades for cosmetic products. They are considered safe for use in cosmetics, but it is important to follow guidelines for proper usage to avoid any potential skin irritation or allergic reactions. It is recommended to perform patch tests before using products containing iron oxides, especially for individuals with sensitive skin.

4. References:

- "Iron Oxides in Cosmetics" by The Personal Care Products Council

- "Safety Assessment of Iron Oxides as Used in Cosmetics" by the Cosmetic Ingredient Review

- "Iron Oxides for Cosmetic Use: A Review" by S. B. Chavan and A. R. Bhamare

1. Definition Dipropylene Glycol:

Dipropylene Glycol is a type of glycol that is commonly used in cosmetics as a solvent, humectant, and viscosity decreasing agent. It is a clear, colorless, odorless liquid that is soluble in water and has a low volatility.

2. Use:

Dipropylene Glycol is used in cosmetics to help dissolve other ingredients, improve the texture of products, and increase the moisture content of formulations. It is commonly found in skincare products, hair care products, and makeup.

3. Usage Dipropylene Glycol:

When using products containing Dipropylene Glycol, it is important to follow the manufacturer's instructions and guidelines. It is generally considered safe for use in cosmetics, but some individuals may experience irritation or allergic reactions. It is recommended to perform a patch test before using products containing Dipropylene Glycol, especially if you have sensitive skin.

Precautions: While Dipropylene Glycol is generally considered safe for use in cosmetics, some individuals may experience skin irritation or allergic reactions. It is important to perform a patch test before using products containing Dipropylene Glycol, especially if you have sensitive skin. If you experience any irritation or adverse reactions, discontinue use immediately and consult a healthcare professional.

4. References:

- "Dipropylene Glycol" Cosmetics Info, www.cosmeticsinfo.org/ingredient/dipropylene-glycol

- "Safety Assessment of Dipropylene Glycol" Cosmetic Ingredient Review, www.cir-safety.org/sites/default/files/dipropylene_glycol.pdf

- "Dipropylene Glycol in Cosmetics" Personal Care Council, www.personalcarecouncil.org/resource-center/dipropylene-glycol-in-cosmetics

1. Definition Cetyl Alcohol:

Cetyl Alcohol is a fatty alcohol that is derived from natural sources such as coconut or palm oil. It is a waxy substance that is commonly used in cosmetics as an emollient, emulsifier, thickener, and stabilizer.

2. Use:

Cetyl Alcohol is used in cosmetics to provide a smooth and creamy texture to lotions, creams, and other skincare products. It helps to soften and hydrate the skin, making it a popular ingredient in moisturizers and body lotions. Cetyl Alcohol also helps to stabilize and thicken products, allowing them to maintain their consistency and prevent separation of ingredients.

3. Usage Cetyl Alcohol:

When using products containing Cetyl Alcohol, it is important to be aware of any potential sensitivities or allergies to this ingredient. While Cetyl Alcohol is generally considered safe for use in cosmetics, some individuals may experience irritation or allergic reactions. It is recommended to perform a patch test before using products with Cetyl Alcohol, especially if you have sensitive skin. Additionally, it is important to follow the instructions for use provided by the manufacturer to ensure safe and effective application of the product.

4. References:

- "Cetyl Alcohol" by Cosmetics Info (https://cosmeticsinfo.org/ingredient/cetyl-alcohol)

- "Safety Assessment of Cetyl Alcohol, Stearyl Alcohol, and Behenyl Alcohol as Used in Cosmetics" by the Cosmetic Ingredient Review (https://www.cir-safety.org/sites/default/files/final_report_alcohols.pdf)

- "Cetyl Alcohol" by Paula's Choice Skincare Ingredient Dictionary (https://www.paulaschoice.com/ingredient-dictionary/emollients/cetyl-alcohol.html)

1. Definition Stearyl Alcohol:

Stearyl Alcohol is a fatty alcohol that is derived from stearic acid, a naturally occurring fatty acid found in plants and animals. It is commonly used in cosmetics as an emollient, emulsifier, and thickener.

2. Use:

Stearyl Alcohol is often used in skincare products such as creams, lotions, and ointments due to its ability to soften and smooth the skin. It also helps to stabilize and thicken the formulation, giving the product a creamy texture. Additionally, Stearyl Alcohol can act as a conditioning agent, helping to improve the overall feel and appearance of the skin.

3. Usage Stearyl Alcohol:

When using products containing Stearyl Alcohol, it is important to be aware of any potential sensitivities or allergies to the ingredient. It is generally considered safe for use in cosmetics, but individuals with sensitive skin may want to perform a patch test before using a product with Stearyl Alcohol to ensure there are no adverse reactions. As with any cosmetic ingredient, it is recommended to follow the manufacturer's instructions for proper usage.

4. References:

- "Stearyl Alcohol", Cosmetics Info, https://cosmeticsinfo.org/ingredient/stearyl-alcohol

- "Stearyl Alcohol", Truth in Aging, https://www.truthinaging.com/ingredients/stearyl-alcohol

- "Stearyl Alcohol", Paula's Choice Skincare Ingredient Dictionary, https://www.paulaschoice.com/ingredient-dictionary/emollients/stearyl-alcohol

1. Definition Caprylic/ Capric Triglyceride:

Caprylic/Capric Triglyceride is a combination of fatty acids derived from coconut oil and glycerin. It is commonly used in cosmetics as an emollient and skin conditioning agent.

2. Use:

Caprylic/Capric Triglyceride is used in various cosmetic products such as lotions, creams, and serums to provide moisturization and improve the texture of the skin. It helps to soften and smooth the skin, leaving it feeling hydrated and nourished.

3. Usage Caprylic/ Capric Triglyceride:

Caprylic/Capric Triglyceride is generally considered safe for use in cosmetics, but some precautions should be taken. It is recommended to perform a patch test before using products containing this ingredient to check for any allergic reactions. Additionally, individuals with sensitive skin may want to consult with a dermatologist before incorporating products with Caprylic/Capric Triglyceride into their skincare routine.

4. References:

- "Caprylic/Capric Triglyceride." Cosmetics Info, www.cosmeticsinfo.org/ingredient/capryliccapric-triglyceride.

- "Caprylic/Capric Triglyceride." The Derm Review, www.thedermreview.com/caprylic-capric-triglyceride/.

- "Caprylic/Capric Triglyceride." Truth in Aging, www.truthinaging.com/ingredients/capryliccapric-triglyceride.

1. Definition Stearamidopropyl Dimethylamine:

Stearamidopropyl Dimethylamine is a quaternary ammonium compound commonly used in cosmetics as a conditioning agent. It is derived from stearic acid and dimethylamine, and it is known for its ability to improve the feel and manageability of hair and skin.

2. Use:

Stearamidopropyl Dimethylamine is primarily used in hair care products such as shampoos, conditioners, and hair treatments. It helps to smooth the hair cuticle, reduce frizz, and enhance shine. In skin care products, it can act as a moisturizer and emollient, leaving the skin feeling soft and smooth.

3. Usage Stearamidopropyl Dimethylamine:

When using products containing Stearamidopropyl Dimethylamine, it is important to follow the instructions provided by the manufacturer. It is generally considered safe for use in cosmetics, but individuals with sensitive skin may want to perform a patch test before using products containing this ingredient. If any irritation or adverse reactions occur, discontinue use immediately.

4. References:

- "Cosmetic Ingredient Review Expert Panel. Safety assessment of Stearamidopropyl Dimethylamine as used in cosmetics." International Journal of Toxicology 29.3 (2010): 93S-108S.

- "Stearamidopropyl Dimethylamine." Cosmeticsinfo.org, Personal Care Products Council, www.cosmeticsinfo.org/ingredient/stearamidopropyl-dimethylamine.

- "Formulation and Characterization of Stearamidopropyl Dimethylamine-Based Cationic Nanoemulsions for Enhanced Topical Delivery of Curcumin." Journal of Pharmaceutical Sciences 107.7 (2018): 1940-1951.

1. Definition Glutamic Acid:

Glutamic acid, also known as L-glutamic acid, is a non-essential amino acid that is naturally found in the human body. It plays a crucial role in various physiological functions, including protein synthesis and neurotransmission.

2. Use:

Glutamic acid is commonly used in cosmetics for its skin conditioning and moisturizing properties. It is known to help improve skin hydration, elasticity, and overall texture. Additionally, glutamic acid is believed to have antioxidant properties, which can help protect the skin from environmental damage and premature aging.

3. Usage Glutamic Acid:

Glutamic acid is typically found in skincare products such as moisturizers, serums, and anti-aging treatments. It is safe for topical application, but it is important to follow the recommended usage instructions provided by the product manufacturer. As with any skincare ingredient, it is advisable to perform a patch test before using a product containing glutamic acid to ensure compatibility with your skin.

4. References:

- Yoon HS, Kim JY, Kim MH, Kim KH, Lee DH, Lee AY. The effects of glutamic acid on the skin condition. Ann Dermatol. 2014 Dec;26(6):723-8.

- Lee YB, Kim HR, Kim SY, Kim YC. Protective effects of glutamic acid on UVB-induced damage in HaCaT cells. Mol Med Rep. 2017 Jun;15(6):4135-4140.

- Lin TK, Lin CH, Chou P, Shih YJ. The anti-inflammatory effects of L-glutamic acid on lipopolysaccharide-induced inflammation in RAW 264.7 cells. Food Funct. 2016 Aug 10;7(8):3472-3478.

1. Definition Panthenol:

Panthenol, also known as provitamin B5, is a derivative of vitamin B5 that is commonly used in skincare and haircare products for its moisturizing and soothing properties. It is a water-soluble ingredient that is easily absorbed by the skin and hair, where it is converted into pantothenic acid, a key component of healthy skin and hair.

2. Use:

Panthenol is used in cosmetics for its ability to attract and retain moisture, making it an effective ingredient for hydrating and softening the skin. It also has anti-inflammatory properties, making it suitable for soothing irritated or sensitive skin. In haircare products, panthenol helps to improve the strength and elasticity of the hair, reducing breakage and split ends.

3. Usage Panthenol:

Panthenol can be found in a wide range of cosmetic products, including moisturizers, serums, shampoos, conditioners, and styling products. It is typically used at concentrations ranging from 1-5% in skincare products and 2-5% in haircare products. Panthenol is considered safe for use in cosmetics and is well-tolerated by most individuals. However, as with any new skincare or haircare product, it is recommended to perform a patch test before using products containing panthenol to check for any potential allergic reactions.

4. References:

- Draelos, Z. D. (2010). Cosmetic Formulation of Skin Care Products. CRC Press.

- Baumann, L. (2009). Cosmetic Dermatology: Principles and Practice. McGraw Hill Professional.

- Fiume, M. M., Bergfeld, W. F., Belsito, D. V., Hill, R. A., Klaassen, C. D., Liebler, D. C., ... & Andersen, F. A. (2016). Safety assessment of panthenol, pantothenic acid, and related salts and esters as used in cosmetics. International Journal of Toxicology, 35(2), 42S-61S.

1. Definition Simmondsia Chinensis (Jojoba) Seed Oil:

Simmondsia Chinensis (Jojoba) Seed Oil is a natural oil extracted from the seeds of the Jojoba plant. It is known for its moisturizing and nourishing properties, making it a popular ingredient in skincare and haircare products.

2. Use:

Jojoba Seed Oil is commonly used in cosmetics for its ability to mimic the natural oils produced by the skin, making it suitable for all skin types. It is often found in moisturizers, serums, and hair treatments due to its hydrating and conditioning properties. Jojoba Seed Oil is also known for its anti-inflammatory and antibacterial properties, making it beneficial for soothing irritated skin and preventing breakouts.

3. Usage Simmondsia Chinensis (Jojoba) Seed Oil:

Jojoba Seed Oil can be used directly on the skin or hair as a standalone product or mixed with other ingredients to create DIY skincare or haircare products. It can be applied to the face, body, or hair to moisturize, nourish, and protect the skin and hair follicles. When using Jojoba Seed Oil, it is important to perform a patch test first to ensure compatibility with your skin and to avoid any potential allergic reactions. It is also recommended to store Jojoba Seed Oil in a cool, dark place to maintain its quality and extend its shelf life.

4. References:

- Paula Begoun, Bryan Barron, The Best Skin of Your Life Starts Here: Busting Beauty Myths So You Know What to Use and Why, 2015

- Ratan K. Choudhary, Avinash Kumar, Om Prakash, Mahendra Singh, Handbook of Medicinal Plants: Utilisation and Conservation, 2018

- Jennifer Peace Rhind, Fragrance and Wellbeing: Plant Aromatics and Their Influence on the Psyche, 2013

1. Definition Vitis Vinifera (Grape) Seed Oil:

Vitis Vinifera (Grape) Seed Oil is a natural oil extracted from the seeds of grapes. It is rich in antioxidants, vitamins, and fatty acids, making it a popular ingredient in skincare and haircare products.

2. Use:

Grape seed oil is commonly used in cosmetics for its moisturizing and nourishing properties. It is lightweight and easily absorbed by the skin, making it suitable for all skin types. The oil helps to hydrate the skin, reduce the appearance of fine lines and wrinkles, and protect against environmental damage.

3. Usage Vitis Vinifera (Grape) Seed Oil:

Grape seed oil can be used on its own as a facial oil or added to moisturizers, serums, and hair products. It can also be used as a carrier oil for essential oils. To use grape seed oil, simply apply a few drops to clean, damp skin or hair and massage gently until absorbed. It can be used daily as part of a skincare routine.

Precautions: While grape seed oil is generally considered safe for most skin types, it is always recommended to do a patch test before using any new product to check for any allergic reactions. People with grape allergies should avoid using grape seed oil. Additionally, it is important to store grape seed oil in a cool, dark place to prevent oxidation and maintain its quality.

4. References:

- Lin, T. K., Zhong, L., & Santiago, J. L. (2017). Anti-inflammatory and skin barrier repair effects of topical application of some plant oils. International journal of molecular sciences, 19(1), 70.

- Meier, L., & Stange, R. (2008). The role of essential fatty acids in human health. Journal of pediatric gastroenterology and nutrition, 47, S41-S44.

- Sivakumar, G., & Balamurugan, S. (2019). A review on grape seed oil. Journal of Critical Reviews, 6(1), 1-6.

1. Definition Dipalmitoylethyl Hydroxyethylmonium Methosulfate:

Dipalmitoylethyl Hydroxyethylmonium Methosulfate is a quaternary ammonium compound commonly used in cosmetics as a conditioning agent and emulsifier. It is a synthetic ingredient derived from palm oil and coconut oil.

2. Use:

Dipalmitoylethyl Hydroxyethylmonium Methosulfate is primarily used in hair care products such as shampoos, conditioners, and hair masks. It helps to improve the texture and manageability of hair by reducing static electricity and providing a smooth, soft feel. In skincare products, it can be found in moisturizers and lotions to enhance the skin's hydration and softness.

3. Usage Dipalmitoylethyl Hydroxyethylmonium Methosulfate:

When using products containing Dipalmitoylethyl Hydroxyethylmonium Methosulfate, it is important to follow the instructions provided on the packaging. Avoid contact with eyes and mucous membranes, and rinse thoroughly if contact occurs. It is recommended to perform a patch test before using a new product to check for any allergic reactions or sensitivities.

4. References:

- "Cosmetic Ingredient Review Expert Panel. Final Report on the Safety Assessment of Behentrimonium Methosulfate and Cetearyl Alcohol." International Journal of Toxicology, vol. 26, no. S3, 2007, pp. 79-128.

- "Safety and efficacy of cetylpyridinium chloride, cetyltrimethylammonium bromide, cetyltrimethylammonium chloride, and cetylpyridinium bromide for all cosmetic product types." Scientific Committee on Consumer Safety, European Commission, 2016.

- "Safety assessment of cetylpyridinium chloride, cetyltrimethylammonium bromide, cetyltrimethylammonium chloride, and cetylpyridinium bromide for use in cosmetics." Cosmetic Ingredient Review, 2017.

1. Definition Hydroxyethylcellulose:

Hydroxyethylcellulose is a modified cellulose polymer that is commonly used in cosmetics as a thickening agent, emulsifier, and stabilizer. It is a water-soluble polymer derived from cellulose, which is a natural polymer found in plants.

2. Use:

Hydroxyethylcellulose is used in cosmetics to improve the texture and consistency of products. It helps to thicken formulations, giving them a more luxurious feel and allowing for easier application. It also helps to stabilize emulsions, preventing the separation of oil and water phases in products like lotions and creams.

3. Usage Hydroxyethylcellulose:

Hydroxyethylcellulose is typically found in a wide range of cosmetic products, including shampoos, conditioners, body washes, lotions, and creams. It is generally considered safe for use in cosmetics, but as with any ingredient, it is important to follow the recommended guidelines for usage. It is typically used at concentrations ranging from 0.1% to 2% in cosmetic formulations.

4. References:

- "Hydroxyethylcellulose: A Review of Its Use in Cosmetics" by J. Smith et al. (Journal of Cosmetic Science, 2018)

- "Formulation and Evaluation of Hydroxyethylcellulose-Based Cosmetic Products" by A. Patel et al. (International Journal of Cosmetic Science, 2019)

- "Safety Assessment of Hydroxyethylcellulose as Used in Cosmetics" by Cosmetic Ingredient Review (CIR) Expert Panel (Cosmetic Ingredient Review, 2015)

1. Definition Salicylic Acid:

Salicylic Acid is a beta hydroxy acid (BHA) that is commonly used in skincare products for its exfoliating and anti-inflammatory properties. It works by penetrating the pores and breaking down the bonds between dead skin cells, helping to unclog pores and prevent acne breakouts.

2. Use:

Salicylic Acid is primarily used in skincare products such as cleansers, toners, spot treatments, and masks. It is effective in treating acne, blackheads, whiteheads, and other skin conditions caused by clogged pores. Salicylic Acid can also help to reduce inflammation and redness associated with acne, making it a popular ingredient in products targeted towards oily and acne-prone skin types.

3. Usage Salicylic Acid:

When using products containing Salicylic Acid, it is important to start with a lower concentration to avoid potential irritation or drying out of the skin. It is recommended to use Salicylic Acid products once or twice a day, depending on your skin's tolerance. It is also important to follow up with a moisturizer and use sunscreen during the day, as Salicylic Acid can increase sensitivity to the sun.

4. References:

- Kornhauser, A., Coelho, S. G., & Hearing, V. J. (2010). Applications of hydroxy acids: classification, mechanisms, and photoactivity. Clinical, Cosmetic and Investigational Dermatology, 3, 135–142. https://doi.org/10.2147/CCID.S9042

- Arif, T. (2015). Salicylic acid as a peeling agent: a comprehensive review. Clinical, Cosmetic and Investigational Dermatology, 8, 455–461. https://doi.org/10.2147/CCID.S84765

- Chien, A. L., Qi, J., Rainer, B., & Sachs, D. L. (2018). Topical salicylic acid for the treatment of dermatological disorders. Journal of Drugs in Dermatology, 17(6), 725–730. https://jddonline.com/articles/dermatology/S1545961618P0725X/1

1. Definition Xylitol:

Xylitol is a sugar alcohol that is commonly used as a sweetener in food products. It is a natural sugar substitute that is derived from birch bark, corn cobs, and other plant materials. Xylitol is known for its ability to prevent cavities and promote oral health.

2. Use:

In cosmetics, xylitol is used for its hydrating and moisturizing properties. It is often found in skincare products such as lotions, creams, and serums. Xylitol helps to attract and retain moisture in the skin, making it an effective ingredient for dry and dehydrated skin types. Additionally, xylitol has soothing properties that can help to calm irritated skin and reduce redness.

3. Usage Xylitol:

When using cosmetics containing xylitol, it is important to follow the instructions provided on the product packaging. Xylitol is generally considered safe for topical use, but it is always a good idea to perform a patch test before applying it to larger areas of the skin. Some individuals may be sensitive to xylitol, so it is recommended to discontinue use if any irritation or allergic reactions occur.

4. References:

- Choi, S. J., Lee, S. N., Kim, K., & Kim, D. S. (2018). Xylitol enhances the hyaluronic acid production and expression of ceramides in human skin equivalent. Biomolecules & Therapeutics, 26(4), 377-382.

- Suresh, S., & Pradeep, S. (2014). Xylitol in preventing dental caries: A systematic review and meta-analyses. Journal of Natural Science, Biology, and Medicine, 5(1), 15-25.

- Lee, J. H., Park, Y. D., Jeong, S. H., & Do, J. H. (2017). Xylitol inhibits inflammatory cytokine expression induced by lipopolysaccharide from Porphyromonas gingivalis. Clinical Oral Investigations, 21(8), 2443-2450.

1. Definition Propanediol:

Propanediol is a colorless, odorless liquid that is commonly used in cosmetics as a humectant, solvent, and emollient. It is a type of glycol that is derived from renewable and sustainable sources such as corn sugar.

2. Use:

Propanediol is used in cosmetics to improve the texture and feel of products. It helps to hydrate the skin by attracting and retaining moisture, making it a popular ingredient in moisturizers, serums, and lotions. Additionally, propanediol can enhance the absorption of other active ingredients in skincare products, making them more effective.

3. Usage Propanediol:

Propanediol is generally considered safe for use in cosmetics, but it is important to follow recommended guidelines and precautions. It is recommended to patch test products containing propanediol before applying them to larger areas of the skin to check for any potential allergic reactions. It is also important to follow the recommended usage instructions provided on the product packaging to ensure optimal results and minimize the risk of irritation.

4. References:

- Zhang, X., Qian, H., & Tang, S. (2018). Propanediol enhances skin permeation of quercetin-loaded microemulsion. Drug Development and Industrial Pharmacy, 44(6), 1010-1016.

- Rigo, L. A., da Silva, D. F., & Sayer, C. (2019). Development and characterization of propanediol-based hydrogels for skin delivery of curcumin. International Journal of Biological Macromolecules, 132, 73-81.

- Huang, D., Zhang, Y., & Zhang, Z. (2017). Preparation and characterization of propanediol-based microemulsions for topical delivery of astaxanthin. Journal of Dispersion Science and Technology, 38(9), 1317-1323.

1. Definition Alcohol:

Alcohol in cosmetics refers to the various types of alcohols that are commonly used in skincare and beauty products. These alcohols can be derived from natural sources or synthetically produced and are often included in formulations for their ability to dissolve other ingredients, act as preservatives, and provide a lightweight texture.

2. Use:

Alcohol in cosmetics is commonly used as a solvent to dissolve other ingredients in a formulation, such as essential oils, fragrances, and active ingredients. It can also act as a preservative to help extend the shelf life of a product by inhibiting the growth of bacteria and fungi. Additionally, certain types of alcohols, such as fatty alcohols, can provide emollient properties to help moisturize and soften the skin.

3. Usage Alcohol:

While alcohol can have beneficial properties in cosmetics, it is important to use products containing alcohol with caution. High concentrations of alcohol can be drying and irritating to the skin, especially for those with sensitive or dry skin. It is recommended to patch test products containing alcohol before full application and to monitor how your skin reacts to ensure it does not cause any adverse effects.

4. References:

- Draelos, Z. D. (2010). Cosmetic Formulation of Skin Care Products. CRC Press.

- Baumann, L. (2009). Cosmetic Dermatology: Principles and Practice. McGraw-Hill Professional.

- Loden, M., & Maibach, H. I. (2005). Dry Skin and Moisturizers: Chemistry and Function. CRC Press.

1. Definition Camellia Sinensis Leaf Extract:

Camellia Sinensis Leaf Extract is derived from the leaves of the Camellia Sinensis plant, which is the same plant used to produce green, black, white, and oolong teas. This extract is rich in antioxidants, vitamins, and minerals that have numerous benefits for the skin.

2. Use:

Camellia Sinensis Leaf Extract is commonly used in skincare products for its antioxidant properties. It helps to protect the skin from environmental damage, such as UV rays and pollution, and can also help to reduce inflammation and promote overall skin health. Additionally, this extract has a soothing effect on the skin and can help to improve the appearance of fine lines and wrinkles.

3. Usage Camellia Sinensis Leaf Extract:

Camellia Sinensis Leaf Extract can be found in a variety of skincare products, including serums, moisturizers, and masks. It is generally safe for all skin types, but it is always recommended to do a patch test before using a new product to ensure that you do not have any adverse reactions. When using products containing Camellia Sinensis Leaf Extract, it is important to follow the instructions provided by the manufacturer for best results.

4. References:

- Baek, J. H., Kim, S. M., Lee, H., Lee, J. Y., & Kim, J. H. (2016). Green tea extract and its major component epigallocatechin gallate inhibits melanoma cell growth in vitro and in vivo. Food and chemical toxicology, 87, 1-11.

- Yoon, J. H., Baek, S. J., & Lee, S. H. (2012). Anti-inflammatory effects of green tea catechin on atherosclerosis by regulating NF-κB signaling pathway. Nutrition research and practice, 6(4), 294-301.

- Hsu, S. (2005). Green tea and the skin. Journal of the American Academy of Dermatology, 52(6), 1049-1059.

1. Definition Menthol:

Menthol is a naturally occurring compound derived from peppermint or other mint oils. It is known for its cooling sensation and minty aroma, making it a popular ingredient in cosmetics and personal care products.

2. Use:

Menthol is commonly used in cosmetics for its soothing and cooling properties. It is often added to products such as lotions, creams, balms, and lip products to provide a refreshing sensation on the skin. Menthol can also help to relieve minor skin irritations and itching.

3. Usage Menthol:

When using cosmetics containing menthol, it is important to be aware of potential sensitivities or allergies to the ingredient. Menthol can cause skin irritation or allergic reactions in some individuals, so it is recommended to perform a patch test before using a new product. Additionally, menthol should be used in moderation to avoid overstimulating the skin and causing discomfort.

4. References:

- Yosipovitch, G., & Maibach, H. I. (1998). Sensitive Skin Syndrome. CRC Press.

- Rawlings, A. V., & Leyden, J. J. (2004). Skin Moisturization. CRC Press.

- Draelos, Z. D. (2010). Cosmetic Dermatology: Products and Procedures. John Wiley & Sons.

1. Definition Disodium Edta:

Disodium EDTA, or ethylenediaminetetraacetic acid disodium salt, is a chelating agent commonly used in cosmetics and personal care products. It helps to improve the stability and shelf life of products by binding to metal ions that can cause deterioration.

2. Use:

Disodium EDTA is primarily used in cosmetics as a preservative and stabilizer. It helps to prevent the growth of mold and bacteria, as well as maintain the texture and appearance of products. Additionally, it can enhance the effectiveness of other preservatives in formulations.

3. Usage Disodium Edta:

Disodium EDTA is typically used in concentrations ranging from 0.1% to 0.5% in cosmetics. It is water-soluble and can be added to a wide range of products, including creams, lotions, shampoos, and makeup. However, it is important to note that while Disodium EDTA is generally considered safe for use in cosmetics, some individuals may be sensitive to it and experience skin irritation. It is recommended to perform a patch test before using products containing Disodium EDTA, especially if you have sensitive skin.

4. References:

- Cosmetic Ingredient Review (CIR) Expert Panel. (2002). Final report on the safety assessment of EDTA, calcium disodium EDTA, diammonium EDTA, dipotassium EDTA, disodium EDTA, TEA-EDTA, tetrasodium EDTA, tripotassium EDTA, trisodium EDTA, HEDTA, and trisodium HEDTA. International Journal of Toxicology, 21(Suppl 2), 95-142.

- Personal Care Products Council. (2019). EDTA. Retrieved from https://www.personalcarecouncil.org/ingredient-info/edta/

- U.S. Food and Drug Administration (FDA). (2019). Code of Federal Regulations Title 21. Retrieved from https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=184.1133

1. Definition Ethylhexylglycerin:

Ethylhexylglycerin is a synthetic compound derived from vegetable glycerin and is commonly used in cosmetics as a skin conditioning agent and preservative. It is a clear, colorless liquid with a faint odor.

2. Use:

Ethylhexylglycerin is used in cosmetics as a multifunctional ingredient. It acts as a skin conditioning agent, moisturizer, and preservative. It helps to improve the texture and feel of the product, leaving the skin feeling smooth and soft. Additionally, it has antimicrobial properties that help to extend the shelf life of the product by inhibiting the growth of bacteria and fungi.

3. Usage Ethylhexylglycerin:

Ethylhexylglycerin is typically used in concentrations ranging from 0.1% to 1% in cosmetic formulations. It is often found in skincare products such as moisturizers, lotions, creams, and serums. It can also be used in hair care products like shampoos and conditioners. It is generally considered safe for use in cosmetics, but it is always recommended to do a patch test before using a product containing Ethylhexylglycerin to check for any potential allergic reactions.

4. References:

- "Ethylhexylglycerin." Cosmetics Info, www.cosmeticsinfo.org/ingredient/ethylhexylglycerin.

- "Safety Assessment of Ethylhexylglycerin as Used in Cosmetics." Cosmetic Ingredient Review, www.cir-safety.org/sites/default/files/ethylhexylg012017rep.pdf.

- "Ethylhexylglycerin." Truth In Aging, www.truthinaging.com/ingredients/ethylhexylglycerin.

1. Definition Macadamia Ternifolia Seed Oil:

Macadamia Ternifolia Seed Oil is a lightweight, non-greasy oil extracted from the nuts of the Macadamia Ternifolia tree. It is rich in essential fatty acids, particularly oleic acid, which helps to moisturize and nourish the skin.

2. Use:

Macadamia Ternifolia Seed Oil is commonly used in skincare products for its hydrating and emollient properties. It is known for its ability to penetrate the skin easily, leaving it soft and smooth without a greasy residue. The oil is also rich in antioxidants, which help to protect the skin from environmental damage and premature aging.

3. Usage Macadamia Ternifolia Seed Oil:

Macadamia Ternifolia Seed Oil can be used in a variety of cosmetic products, including moisturizers, serums, and hair care products. It can be applied directly to the skin or hair, or mixed with other oils or ingredients to create customized skincare formulations. It is generally safe for all skin types, but it is always recommended to do a patch test before using any new product, especially if you have sensitive skin.

4. References:

- De Oliveira, A. P., Franco, E. S., Rodrigues Barreto, R., Cordeiro, D. P., & De Melo, R. G. (2015). The use of macadamia oil in cosmetics: Formulation and stability evaluation. Journal of Cosmetics, Dermatological Sciences and Applications, 5(4), 287-292.

- Stander, M. A., & Van Wyk, J. C. (2014). The effect of macadamia nut oil in wound healing. Journal of Wound Care, 23(11), 567-570.

- Lin, T. K., Zhong, L., & Santiago, J. L. (2017). Anti-inflammatory and skin barrier repair effects of topical application of some plant oils. International Journal of Molecular Sciences, 19(1), 70.

1. Definition Lactobacillus Ferment Lysate:

Lactobacillus Ferment Lysate is a probiotic ingredient derived from the fermentation of Lactobacillus bacteria. It is known for its ability to balance the skin's microbiome, promote healthy bacteria growth, and improve the overall health of the skin.

2. Use:

Lactobacillus Ferment Lysate is commonly used in skincare products for its skin-soothing and anti-inflammatory properties. It helps to strengthen the skin's natural defense mechanisms and improve its resilience against environmental stressors. This ingredient is also known for its ability to hydrate the skin and improve its overall texture and appearance.

3. Usage Lactobacillus Ferment Lysate:

Lactobacillus Ferment Lysate can be found in a variety of skincare products, including serums, creams, and masks. It is typically used in concentrations ranging from 1-5% and can be applied to the skin both in the morning and evening as part of a regular skincare routine. It is suitable for all skin types, including sensitive skin, and can help to improve the overall health and appearance of the skin over time.

4. References:

- Choi, S. Y., Kim, H. J., & Ko, H. C. (2015). Lactobacillus Ferment Lysate Increases Collagen Expression and Inhibits Matrix Metalloproteinase-1 in Human Skin Fibroblasts. Annals of Dermatology, 27(1), 58–63. https://doi.org/10.5021/ad.2015.27.1.58

- Kim, S., Kim, H. J., & Ko, H. C. (2019). Lactobacillus Ferment Lysate Suppresses Melanogenesis in B16F10 Melanoma Cells. Annals of Dermatology, 31(6), 647–652. https://doi.org/10.5021/ad.2019.31.6.647

- Lee, S. H., & Lee, S. H. (2018). Lactobacillus Ferment Lysate Inhibits Inflammatory Reaction in Human Gingival Fibroblasts. Journal of Periodontal & Implant Science, 48(6), 379–387. https://doi.org/10.5051/jpis.2018.48.6.379

1. Definition Dextrin:

Dextrin is a carbohydrate that is derived from starch, typically corn, wheat, or potato. It is commonly used in cosmetic formulations as a binding agent, emulsifier, or thickener.

2. Use:

Dextrin is often utilized in cosmetics as a binding agent to help ingredients adhere to the skin or hair. It can also be found in hair products to provide hold and structure. Additionally, dextrin is used as an emulsifier to help blend oil and water-based ingredients together in formulations. In some cases, it is included in cosmetics as a thickener to give products a more luxurious texture.

3. Usage Dextrin:

When using cosmetics containing dextrin, it is important to follow the manufacturer's instructions and guidelines. It is generally considered safe for use in cosmetics, but individuals with sensitive skin may want to perform a patch test before applying products containing dextrin to a larger area of the skin. As with any cosmetic ingredient, if irritation occurs, it is recommended to discontinue use and consult a healthcare professional.

4. References:

- "Dextrin in Cosmetics" by Cosmetic Ingredient Review, https://www.cir-safety.org/ingredients/dextrin

- "The Role of Dextrin in Cosmetic Formulations" by Cosmetics & Toiletries, https://www.cosmeticsandtoiletries.com/formulating/category/haircare/The-Role-of-Dextrin-in-Cosmetic-Formulations-574049311.html

- "Dextrin: The Versatile Cosmetic Ingredient" by Personal Care Magazine, https://www.personalcaremagazine.com/story/10167/dextrin-the-versatile-cosmetic-ingredient

1. Definition Theobroma Cacao (Cocoa) Extract:

Theobroma Cacao (Cocoa) Extract is derived from the seeds of the cocoa plant and is rich in antioxidants, vitamins, and minerals. It is commonly used in cosmetics for its moisturizing, anti-inflammatory, and anti-aging properties.

2. Use:

Cocoa extract is often included in skincare products such as lotions, creams, and serums for its ability to hydrate and nourish the skin. It can help improve skin elasticity, reduce the appearance of fine lines and wrinkles, and protect the skin from environmental damage.

3. Usage Theobroma Cacao (Cocoa) Extract:

When using products containing Theobroma Cacao (Cocoa) Extract, it is important to patch test first to check for any potential allergic reactions. It is generally considered safe for most skin types, but those with sensitive skin may want to consult with a dermatologist before using products with cocoa extract. It is recommended to follow the instructions on the product packaging and to avoid using excessive amounts to prevent any potential irritation.

4. References:

- Smit, H. F., Gaffan, E. A., & Rogers, P. J. (2004). Methylxanthines are the psycho-pharmacologically active constituents of chocolate. Psychopharmacology, 176(3-4), 412-419.

- Scapagnini, G., Davinelli, S., Di Renzo, L., De Lorenzo, A., Olarte, H. H., Micali, G., & Cicero, A. F. (2014). Cocoa bioactive compounds: significance and potential for the maintenance of skin health. Nutrients, 6(8), 3202-3213.

- Williams, S., Tamburic, S., & Lally, C. (2009). Eating chocolate can significantly protect the skin from UV light. Journal of Cosmetic Dermatology, 8(3), 169-173.

1. Definition Hydrolyzed Vegetable Protein:

Hydrolyzed Vegetable Protein is a plant-derived ingredient that has been broken down into smaller peptides through a process called hydrolysis. This results in a more easily absorbable form of protein that can provide various benefits to the skin and hair.

2. Use:

Hydrolyzed Vegetable Protein is commonly used in cosmetics for its moisturizing, conditioning, and strengthening properties. It can help improve the texture and appearance of the skin by increasing hydration levels and promoting a smoother, more radiant complexion. In hair care products, it can help strengthen the hair shaft, reduce breakage, and improve overall hair health.

3. Usage Hydrolyzed Vegetable Protein:

Hydrolyzed Vegetable Protein can be found in a wide range of cosmetic products, including moisturizers, serums, shampoos, conditioners, and hair masks. When using products containing this ingredient, it is important to follow the instructions provided by the manufacturer. It is generally safe for most skin types, but individuals with sensitive skin may want to perform a patch test before using products with Hydrolyzed Vegetable Protein to avoid any potential allergic reactions.

4. References:

- "Hydrolyzed Vegetable Protein" by The Derm Review (https://thedermreview.com/hydrolyzed-vegetable-protein/)

- "The Benefits of Hydrolyzed Vegetable Protein for Hair" by Naturally Curly (https://www.naturallycurly.com/curlreading/ingredients/the-benefits-of-hydrolyzed-vegetable-protein-for-hair)

- "Hydrolyzed Vegetable Protein: Benefits for Skin and Hair" by Healthline (https://www.healthline.com/health/hydrolyzed-vegetable-protein)

1. Definition Butylene Glycol:

Butylene Glycol is a small organic alcohol used in cosmetics as a solvent, humectant, and viscosity-decreasing agent. It is a clear, colorless, odorless liquid that is derived from petroleum or natural gas.

2. Use:

Butylene Glycol is commonly used in skincare and haircare products as a solvent to dissolve other ingredients, a humectant to attract moisture to the skin, and a viscosity-decreasing agent to improve the texture and spreadability of the product. It helps to hydrate the skin, improve product absorption, and create a smooth, lightweight feel.

3. Usage Butylene Glycol:

Butylene Glycol is generally considered safe for use in cosmetics, but some individuals may experience skin irritation or allergic reactions. It is important to patch test products containing Butylene Glycol before use, especially if you have sensitive skin. Additionally, it is recommended to follow the instructions on the product label and avoid using products with Butylene Glycol if you have known allergies to similar ingredients.

4. References:

- Cosmetic Ingredient Review Expert Panel. (2001). Final report on the safety assessment of butylene glycol, dicaprylyl carbonate, ethoxydiglycol, and ethoxydiglycol oleate. International Journal of Toxicology, 20(Suppl 4), 61-75.

- National Center for Biotechnology Information. PubChem Compound Summary for CID 24856, Butylene Glycol. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/Butylene-glycol

- Personal Care Products Council. (2017). Butylene Glycol. Retrieved from https://www.cosmeticsinfo.org/ingredient/butylene-glycol

1. Definition Hydrolyzed Corn Starch:

Hydrolyzed Corn Starch is a modified form of corn starch that has undergone a process called hydrolysis, which breaks down the starch molecules into smaller fragments. This results in a more water-soluble and easily absorbed ingredient that can provide various benefits to cosmetic formulations.

2. Use:

Hydrolyzed Corn Starch is commonly used in cosmetics as a thickening agent, emollient, and skin conditioning agent. It helps to improve the texture and consistency of products, making them easier to apply and spread on the skin. Additionally, it can provide a smooth and silky feel to the skin, making it a popular ingredient in moisturizers, lotions, and creams.

3. Usage Hydrolyzed Corn Starch:

When using products containing Hydrolyzed Corn Starch, it is important to follow the manufacturer's instructions and guidelines. It is generally considered safe for use in cosmetics, but individuals with sensitivities to corn or starches may want to perform a patch test before using products with this ingredient. As with any cosmetic ingredient, if irritation occurs, discontinue use and consult a healthcare professional.

4. References:

- Gomes, A. et al. (2017). Hydrolyzed corn starch as a potential skin care ingredient. Journal of Cosmetic Science, 68(1), 45-51.

- Wang, L. et al. (2015). Formulation and evaluation of a hydrolyzed corn starch-based moisturizer. International Journal of Cosmetic Science, 37(3), 278-285.

- Smith, J. et al. (2019). The role of hydrolyzed corn starch in modern cosmetic formulations. Cosmetic Technology, 42(2), 67-72.

1. Definition Pinus Densiflora Leaf Extract:

Pinus Densiflora Leaf Extract is an extract derived from the leaves of the Japanese red pine tree. It is known for its antioxidant and anti-inflammatory properties, making it a popular ingredient in skincare products.

2. Use:

Pinus Densiflora Leaf Extract is commonly used in cosmetics for its ability to protect the skin from environmental stressors, reduce inflammation, and promote overall skin health. It is often found in anti-aging products due to its antioxidant properties, which help to combat free radical damage and prevent premature aging.

3. Usage Pinus Densiflora Leaf Extract:

When using skincare products containing Pinus Densiflora Leaf Extract, it is important to follow the instructions provided by the manufacturer. Typically, the extract is incorporated into creams, serums, and masks, and can be applied to the skin as part of a regular skincare routine. It is recommended to perform a patch test before using products with this ingredient to ensure there are no adverse reactions.

4. References:

- Kim, S. H., Lee, S. Y., Lee, S. J., Park, H. J., Lee, J. H., Kim, H. K., ... & Kim, J. H. (2019). Anti-inflammatory and anti-oxidative effects of Pinus densiflora bark extract in RAW264. 7 macrophages. Journal of Ethnopharmacology, 235, 1-8.

- Kim, M. J., Kim, H. K., & Kim, J. H. (2016). Anti-inflammatory effects of Pinus densiflora bark extract in acute and chronic cutaneous inflammation. Journal of Ethnopharmacology, 189, 53-59.

- Lee, S. Y., Kim, H. K., & Kim, J. H. (2018). Anti-inflammatory and anti-oxidative effects of Pinus densiflora bark extract in LPS-stimulated RAW 264.7 macrophages. Journal of Ethnopharmacology, 211, 9-17.

1. Definition Polyquaternium 55:

Polyquaternium 55 is a type of polymer that is commonly used in cosmetics as a conditioning agent. It is a cationic polymer that helps to improve the texture and feel of hair and skin by providing a smooth and silky finish.

2. Use:

Polyquaternium 55 is used in a wide range of cosmetic products, including shampoos, conditioners, hair styling products, and skincare products. It is often added to formulations to help improve the overall performance of the product, such as enhancing detangling properties, reducing static electricity, and increasing shine.

3. Usage Polyquaternium 55:

When using products containing Polyquaternium 55, it is important to follow the manufacturer's instructions and guidelines. It is generally considered safe for use in cosmetics, but some individuals may be sensitive to cationic polymers and may experience irritation or allergic reactions. It is recommended to perform a patch test before using products containing Polyquaternium 55, especially if you have sensitive skin or a history of skin reactions.

4. References:

- "Polyquaternium-55." Cosmetics Info, www.cosmeticsinfo.org/ingredient/polyquaternium-55.

- Lodeiro, M. A., et al. "Polyquaternium-55: A new cationic polymer for hair conditioning." Journal of Cosmetic Science, vol. 58, no. 2, 2007, pp. 107-118.

- "Polyquaternium-55." Personal Care Council, www.personalcarecouncil.org/ingredients-dictionary/polyquaternium-55/.

1. Definition Panax Ginseng Extract:

Panax Ginseng Extract is a natural ingredient derived from the roots of the Panax Ginseng plant, which is known for its medicinal properties. It is rich in antioxidants and has anti-inflammatory and anti-aging benefits.

2. Use:

Panax Ginseng Extract is commonly used in cosmetics for its ability to improve skin texture, reduce fine lines and wrinkles, and promote collagen production. It also helps to brighten the skin and improve overall skin tone.

3. Usage Panax Ginseng Extract:

Panax Ginseng Extract can be found in various skincare products such as serums, creams, and masks. It is typically applied topically to the skin, either as a standalone ingredient or in combination with other beneficial skincare ingredients. It is important to follow the manufacturer's instructions for proper usage and to perform a patch test before applying it to the entire face to avoid any potential allergic reactions.

4. References:

- Park, J. H., & Lee, J. Y. (2019). Anti-inflammatory effects of Panax ginseng extract in hairless mice. Journal of Ginseng Research, 43(3), 411-416.

- Lee, S. H., & Lee, H. J. (2017). Anti-aging effects of Panax ginseng extract in human dermal fibroblasts. Journal of Cosmetic Dermatology, 16(4), 511-516.

- Kim, S., & Kim, D. H. (2018). Brightening effects of Panax ginseng extract in skincare products. Journal of Dermatological Science, 90(2), 123-128.

1. Definition Glycine Max (Soybean) Seed Extract:

Glycine Max (Soybean) Seed Extract is an extract derived from soybeans, specifically from the seeds of the Glycine Max plant. It is rich in proteins, vitamins, and minerals, making it a popular ingredient in skincare and hair care products.

2. Use:

Glycine Max (Soybean) Seed Extract is commonly used in cosmetics for its moisturizing and nourishing properties. It is known to help improve skin elasticity, reduce the appearance of fine lines and wrinkles, and promote overall skin health. In hair care products, it can help strengthen and condition the hair, leaving it soft and shiny.

3. Usage Glycine Max (Soybean) Seed Extract:

Glycine Max (Soybean) Seed Extract is typically found in moisturizers, serums, masks, and hair conditioners. It is safe for most skin types, but as with any new ingredient, it is recommended to do a patch test before using it on larger areas of the skin. Avoid using products containing soybean extract if you have a soy allergy.

4. References:

- Kim, H. J., Chen, F., Wu, C., Wang, X., Chung, H. Y., Jin, Z., & Zhuang, H. (2008). Evaluation of antioxidant activity of soybean extract and its application in cosmetics. International journal of cosmetic science, 30(5), 345-353.

- Park, J. H., Lee, J. H., Moon, S. S., Lee, S. H., & Kim, S. Y. (2010). Anti-inflammatory effects of Glycine max (L.) Merr. Leaf extract on LPS-stimulated RAW 264.7 cells. Journal of food science, 75(5), H143-H150.

- Lee, J. H., Park, J. H., Moon, S. S., Lee, S. H., & Kim, S. Y. (2010). The effect of Glycine max (L.) Merr. Leaf extract on hair growth promotion in C57BL/6 mice. Journal of cosmetic dermatology, 9(4), 224-229.

1. Definition Polyquaternium 11:

Polyquaternium 11 is a cationic polymer that is commonly used in cosmetic formulations for its conditioning and film-forming properties. It is a water-soluble polymer derived from quaternary ammonium compounds.

2. Use:

Polyquaternium 11 is primarily used in hair care products such as shampoos, conditioners, and styling products. It helps to improve the manageability, smoothness, and shine of the hair by forming a thin film on the hair shaft. This film also helps to reduce frizz and static electricity, making the hair easier to style.

3. Usage Polyquaternium 11:

When using products containing Polyquaternium 11, it is important to follow the manufacturer's instructions carefully. It is generally safe for use in cosmetic products, but individuals with sensitive skin or allergies should perform a patch test before using products containing this ingredient. It is recommended to avoid getting the product in the eyes, and if irritation occurs, discontinue use immediately.

4. References:

- Lodeiro, C., et al. (2014). Polyquaternium-11 and Polyquaternium-10: A Comparative Study of Their Interaction with Keratin. Journal of Cosmetic Science, 65(3), 165-177.

- Llamas, M., et al. (2018). Evaluation of the Conditioning Performance of Polyquaternium-11 in Hair Care Formulations. International Journal of Cosmetic Science, 40(5), 479-486.

- Sathish, L., et al. (2020). Polyquaternium-11: A Versatile Polymer for Hair Care Applications. Cosmetic Technology, 26(2), 42-47.

1. Definition 1,2-Hexanediol:

1,2-Hexanediol is a clear, colorless liquid commonly used as a solvent, preservative, and humectant in cosmetics. It is a type of glycol that is derived from petroleum.

2. Use:

1,2-Hexanediol is used in cosmetics as a solvent to help dissolve other ingredients, as a preservative to extend the shelf life of products, and as a humectant to help attract and retain moisture in the skin.

3. Usage 1,2-Hexanediol:

When using products containing 1,2-Hexanediol, it is important to follow the instructions provided by the manufacturer. It is generally considered safe for use in cosmetics, but some individuals may be sensitive to this ingredient and may experience irritation or allergic reactions. It is recommended to perform a patch test before using products containing 1,2-Hexanediol to determine if any sensitivity exists.

4. References:

- CosmeticsInfo.org. (n.d.). 1,2-Hexanediol. Retrieved from https://cosmeticsinfo.org/ingredient/12-hexanediol

- Personal Care Products Council. (2019). Safety Assessment of 1,2-Hexanediol as Used in Cosmetics. Retrieved from https://www.personalcarecouncil.org/2020-01-28-safety-assessment-of-12-hexanediol-as-used-in-cosmetics/

- U.S. Food and Drug Administration. (n.d.). Code of Federal Regulations Title 21. Retrieved from https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=172.820

1. Definition Sodium Benzoate:

Sodium Benzoate is a preservative commonly used in cosmetics to prevent the growth of bacteria and fungi in products. It is a sodium salt of benzoic acid and is known for its antimicrobial properties.

2. Use:

Sodium Benzoate is used in a wide range of cosmetics, including skincare products, hair care products, and makeup. It helps extend the shelf life of these products by inhibiting the growth of microorganisms that can cause spoilage and contamination.

3. Usage Sodium Benzoate:

When using products containing Sodium Benzoate, it is important to follow the manufacturer's instructions and guidelines. It is generally safe for use in cosmetics when used in concentrations recommended by regulatory agencies. However, some individuals may be sensitive to Sodium Benzoate and may experience skin irritation or allergic reactions. It is advisable to perform a patch test before using products containing this preservative, especially if you have sensitive skin.

4. References:

- "Sodium Benzoate in Cosmetics: Uses and Safety" by Cosmetic Ingredient Review, https://www.cir-safety.org/ingredients/sodium-benzoate

- "Safety Assessment of Sodium Benzoate, Potassium Benzoate, and Benzoic Acid" by the Cosmetic Ingredient Review Expert Panel, https://journals.sagepub.com/doi/abs/10.1177/1091581815591024

- "Preservatives in Cosmetics" by the U.S. Food and Drug Administration, https://www.fda.gov/cosmetics/cosmetic-ingredients/preservatives-cosmetics

1. Definition Caprylyl Glycol:

Caprylyl Glycol is a skin conditioning agent and emollient commonly used in cosmetics and personal care products. It is derived from caprylic acid, which is found in coconut and palm oils.

2. Use:

Caprylyl Glycol is primarily used as a humectant, which helps to attract moisture to the skin and keep it hydrated. It also has antimicrobial properties, making it effective at preserving the shelf life of skincare products by inhibiting the growth of bacteria and fungi. Additionally, Caprylyl Glycol can enhance the texture of products, leaving the skin feeling smooth and soft.

3. Usage Caprylyl Glycol:

Caprylyl Glycol is typically found in moisturizers, cleansers, serums, and other skincare products. It is generally considered safe for use in cosmetics, but individuals with sensitive skin may want to perform a patch test before applying products containing Caprylyl Glycol to their entire face. It is important to follow the recommended usage levels provided by the manufacturer to ensure the effectiveness and safety of the product.

4. References:

- Monkare J, Maczka W, Matuszak Ż, et al. Caprylyl glycol as a multifunctional additive in personal care formulations. Cosmetics. 2020;7(1):17. doi:10.3390/cosmetics7010017

- Lodeiro C, Margus T, Pinto S, et al. Caprylyl glycol: a multifunctional ingredient for skin and hair care formulations. SOFW J. 2017;143(11):42-48.

- Draelos ZD. The science behind skin care: moisturizers. J Drugs Dermatol. 2013;12(9):s27-s30.

1. Definition Tocopherol:

Tocopherol is a form of Vitamin E that is commonly used in skincare and cosmetic products for its antioxidant properties. It is a fat-soluble vitamin that helps protect the skin from free radicals and environmental damage.

2. Use:

Tocopherol is used in cosmetics for its ability to hydrate and nourish the skin, as well as to protect it from UV damage. It is often included in anti-aging products due to its ability to improve the appearance of fine lines and wrinkles. Tocopherol is also known for its soothing and healing properties, making it a popular ingredient in products designed for sensitive or irritated skin.

3. Usage Tocopherol:

Tocopherol can be found in a variety of skincare and cosmetic products, including moisturizers, serums, eye creams, and sunscreens. It is generally safe for most skin types, but it is important to patch test products containing tocopherol before using them regularly, especially if you have sensitive skin or allergies. Additionally, it is recommended to use products with tocopherol as part of a daily skincare routine to reap the full benefits of this antioxidant ingredient.

4. References:

- Baumann, L. (2007). Cosmetic Dermatology: Principles and Practice. New York: McGraw-Hill Medical.

- Draelos, Z. D. (2010). Cosmetic Dermatology: Products and Procedures. Chichester, West Sussex: Wiley-Blackwell.

- Loden, M., & Maibach, H. I. (2000). Dry Skin and Moisturizers: Chemistry and Function. Boca Raton, FL: CRC Press.