R+Co Rodeo Star Thickening Style Foam

1. Definition Polyurethane 14:

Polyurethane-14 is a polymer commonly used in cosmetics as a film-forming agent. It is a synthetic ingredient that helps to create a smooth and even finish on the skin.

2. Use:

Polyurethane-14 is often found in makeup products such as foundations, primers, and setting sprays. It helps to improve the longevity of makeup by creating a barrier on the skin that helps to lock in the pigments and prevent them from fading or smudging throughout the day.

3. Usage Polyurethane 14:

When using cosmetics containing Polyurethane-14, it is important to follow the instructions provided on the product packaging. It is recommended to apply the product evenly onto the skin and allow it to dry before applying additional makeup products on top. It is also advisable to perform a patch test before using the product to check for any potential allergic reactions.

Precautions: While Polyurethane-14 is considered safe for use in cosmetics, some individuals may be sensitive to this ingredient. If you experience any irritation or discomfort after using a product containing Polyurethane-14, it is recommended to discontinue use and consult a dermatologist.

4. References:

- Cosmetics Info. (n.d.). Polyurethane-14. https://cosmeticsinfo.org/ingredient/polyurethane-14

- Personal Care Council. (2019). Polyurethane-14. https://www.personalcarecouncil.org/ingredient-info/ingredient-list/polyurethane-14/

- Environmental Working Group. (n.d.). Polyurethane-14. https://www.ewg.org/skindeep/ingredients/705381-polyurethane-14/

1. Definition Peg 40 Hydrogenated Castor Oil:

Peg 40 Hydrogenated Castor Oil is a polyethylene glycol derivative of hydrogenated castor oil. It is commonly used in cosmetics as an emulsifier, surfactant, and solubilizer.

2. Use:

Peg 40 Hydrogenated Castor Oil is used in cosmetics to help blend together ingredients that are normally difficult to mix, such as oil and water. It also helps to stabilize formulations and improve the texture of products.

3. Usage Peg 40 Hydrogenated Castor Oil:

Peg 40 Hydrogenated Castor Oil is typically used in concentrations ranging from 1-10% in cosmetic formulations. It is often found in creams, lotions, serums, and other skincare products. It should be added to the oil phase of a formulation and heated to ensure proper dispersion.

Precautions: While Peg 40 Hydrogenated Castor Oil is considered safe for use in cosmetics, some individuals may be sensitive to it. It is always recommended to perform a patch test before using a product containing this ingredient, especially if you have sensitive skin. Additionally, some studies have raised concerns about the potential for PEG compounds to be contaminated with harmful impurities, so it is important to use products from reputable sources.

4. References:

- "PEG-40 Hydrogenated Castor Oil." Cosmetics Info, www.cosmeticsinfo.org/ingredient/peg-40-hydrogenated-castor-oil.

- "PEG-40 Hydrogenated Castor Oil." Truth In Aging, www.truthinaging.com/ingredients/peg-40-hydrogenated-castor-oil.

- "PEG-40 Hydrogenated Castor Oil." Paula's Choice Skincare, www.paulaschoice.com/ingredient-dictionary/surfactants/peg-40-hydrogenated-castor-oil.

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.

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 Prunus Armeniaca (Apricot) Kernel Oil:

Prunus Armeniaca (Apricot) Kernel Oil is a lightweight oil extracted from the kernels of apricots. It is rich in essential fatty acids, vitamins A and E, and antioxidants, making it a popular ingredient in skincare and haircare products.

2. Use:

Apricot Kernel Oil is commonly used in cosmetics for its moisturizing and nourishing properties. It helps to hydrate and soften the skin, leaving it smooth and supple. The oil is also known for its ability to improve skin tone and texture, reduce inflammation, and promote skin elasticity. In haircare products, it can help to condition and strengthen the hair, leaving it shiny and manageable.

3. Usage Prunus Armeniaca (Apricot) Kernel Oil:

Apricot Kernel Oil can be used in a variety of ways in cosmetics. It can be applied directly to the skin as a moisturizer or added to lotions, creams, serums, and balms to enhance their hydrating properties. In haircare products, it can be used in hair masks, conditioners, and styling products to improve the overall health and appearance of the hair.

Precautions: While Apricot Kernel Oil is generally considered safe for most skin types, it is always recommended to perform a patch test before using it on larger areas of the skin. Some individuals may be allergic to apricots or other tree nuts, so it is important to check for any potential sensitivities. Additionally, it is best to store the oil in a cool, dark place away from direct sunlight 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.

- Ahmad, Z. (2010). The uses and properties of almond oil. Complementary Therapies in Clinical Practice, 16(1), 10-12.

- Ranzato, E., Martinotti, S., & Burlando, B. (2011). Wound healing properties of jojoba liquid wax: an in vitro study. Journal of Ethnopharmacology, 134(2), 443-449.

1. Definition Actinidia Chinensis (Kiwi) Fruit Extract:

Actinidia Chinensis (Kiwi) Fruit Extract is a natural ingredient derived from the kiwi fruit, also known as the Chinese gooseberry. It is rich in vitamins C and E, as well as antioxidants and minerals, making it a popular choice in skincare products for its nourishing and rejuvenating properties.

2. Use:

Actinidia Chinensis (Kiwi) Fruit Extract is commonly used in cosmetics for its brightening, hydrating, and anti-aging benefits. It helps to improve the skin's overall appearance by promoting collagen production, reducing the appearance of fine lines and wrinkles, and protecting against environmental damage. Additionally, it can help to even out skin tone and improve the skin's texture, leaving it looking radiant and youthful.

3. Usage Actinidia Chinensis (Kiwi) Fruit Extract:

Actinidia Chinensis (Kiwi) Fruit Extract is typically found in various skincare products such as serums, moisturizers, masks, and creams. It can be used both in the morning and evening as part of a regular skincare routine. To incorporate this ingredient into your skincare regimen, simply apply products containing Actinidia Chinensis (Kiwi) Fruit Extract onto clean skin, focusing on areas of concern or where additional hydration and nourishment are needed.

4. References:

- Kim, J. E., Kim, Y. J., Kim, Y. S., & Lee, M. K. (2017). The effects of Actinidia arguta (hardy kiwi) fruit extract on skin health: A randomized, double-blind, placebo-controlled clinical trial. Phytotherapy Research, 31(5), 797-804.

- Park, S. Y., Kim, Y. S., & Lee, M. K. (2017). Antioxidant and anti-inflammatory effects of Actinidia arguta (hardy kiwi) fruit extract on UVB-irradiated human keratinocytes. Journal of Cosmetic Dermatology, 16(1), 69-75.

- Lee, M. K., Kim, Y. J., & Kim, Y. S. (2018). Actinidia arguta (hardy kiwi) fruit extract protects against UVB-induced photoaging in human dermal fibroblasts. Journal of Photochemistry and Photobiology B: Biology, 179, 46-53.

1. Definition Aloe Barbadensis (Aloe Vera) Leaf Extract:

Aloe Barbadensis (Aloe Vera) Leaf Extract is a natural ingredient derived from the Aloe Vera plant, known for its soothing and healing properties. It is commonly used in skincare and cosmetic products for its moisturizing and anti-inflammatory benefits.

2. Use:

Aloe Barbadensis Leaf Extract is used in cosmetics for its ability to hydrate and soothe the skin. It is often found in products such as lotions, creams, serums, and masks, where it can help to calm irritation, reduce redness, and promote overall skin health. Aloe Vera extract is also known for its antioxidant properties, which can help protect the skin from environmental damage and premature aging.

3. Usage Aloe Barbadensis (Aloe Vera) Leaf Extract:

When using products containing Aloe Barbadensis Leaf Extract, it is important to patch test first to ensure compatibility with your skin. Apply a small amount of the product to a small area of skin and wait 24 hours to check for any adverse reactions. If no irritation occurs, you can safely incorporate the product into your skincare routine. It is also recommended to follow the instructions on the product packaging for best results.

4. References:

- Surjushe, A., Vasani, R., & Saple, D. G. (2008). Aloe vera: A short review. Indian journal of dermatology, 53(4), 163–166. https://doi.org/10.4103/0019-5154.44785

- Radha, M. H., & Laxmipriya, N. P. (2015). Evaluation of biological properties and clinical effectiveness of Aloe vera: A systematic review. Journal of traditional and complementary medicine, 5(1), 21–26. https://doi.org/10.1016/j.jtcme.2014.10.006

- Paulsen, E., Korsholm, L., & Brandrup, F. (2005). A double-blind, placebo-controlled study of a commercial Aloe vera gel in the treatment of slight to moderate psoriasis vulgaris. Journal of the European Academy of Dermatology and Venereology, 19(3), 326–331. https://doi.org/10.1111/j.1468-3083.2005.01203.x

1. Definition Hedychium Coronarium Root Extract:

Hedychium Coronarium Root Extract is an extract derived from the root of the Hedychium coronarium plant, also known as white ginger lily. This plant is native to Southeast Asia and is known for its aromatic fragrance and medicinal properties.

2. Use:

Hedychium Coronarium Root Extract is commonly used in cosmetics for its skin conditioning and soothing properties. It is known to have anti-inflammatory and antioxidant effects, making it a popular ingredient in skincare products aimed at reducing redness, calming irritation, and promoting overall skin health.

3. Usage Hedychium Coronarium Root Extract:

Hedychium Coronarium Root Extract is typically found in creams, lotions, serums, and masks. It can be used in both leave-on and rinse-off products. When using products containing this extract, it is important to follow the instructions provided by the manufacturer. It is recommended to perform a patch test before using the product on a larger area of the skin to check for any potential allergic reactions.

4. References:

- Kim, S., Lee, S., Lee, J., & Kim, C. (2008). Anti-inflammatory effect of Hedychium coronarium Koenig. Extract in RAW 264.7 cells. Journal of Ethnopharmacology, 120(3), 389-397.

- Saha, P., Mandal, S., Das, A., Das, S., & Pal, M. (2017). Evaluation of antioxidant and anti-inflammatory activity of Hedychium coronarium Koen. Rhizome. Journal of Traditional and Complementary Medicine, 7(3), 306-313.

- Sritularak, B., De-Eknamkul, W., & Tantitadapitak, C. (2012). Cytotoxic and anti-inflammatory activities of chemicals from Hedychium coronarium. Natural Product Communications, 7(8), 1031-1034.

1. Definition Mangifera Indica (Mango) Fruit Extract:

Mangifera Indica (Mango) Fruit Extract is a natural ingredient derived from the mango fruit. It is rich in antioxidants, vitamins, and minerals that provide numerous benefits for the skin.

2. Use:

Mango fruit extract is commonly used in cosmetics for its moisturizing, nourishing, and revitalizing properties. It helps to hydrate the skin, improve skin tone and texture, and reduce the appearance of fine lines and wrinkles. Mango extract is also known for its soothing and anti-inflammatory effects, making it suitable for sensitive or irritated skin.

3. Usage Mangifera Indica (Mango) Fruit Extract:

Mango fruit extract can be found in a variety of skincare products, including moisturizers, serums, masks, and creams. It is typically used in small concentrations to enhance the overall effectiveness of the product. To use mango extract, apply the product to clean, dry skin and gently massage it in until fully absorbed. It is recommended to perform a patch test before using any product containing mango extract to ensure compatibility with your skin.

4. References:

- S. L. J. F. M. (2016). Mango (Mangifera indica L.) by-products and their valuable components: a review. Food Chemistry, 183, 173-180.

- Kaur, C., & Kapoor, H. C. (2002). Antioxidants in fruits and vegetables - the millennium's health. International Journal of Food Science & Technology, 36(7), 703-725.

- Barreto, J. C., Trevisan, M. T. S., Hull, W. E., Erben, G., de Brito, E. S., & Pfundstein, B. (2008). Characterization and quantitation of polyphenolic compounds in bark, kernel, leaves, and peel of mango (Mangifera indica L.). Journal of Agricultural and Food Chemistry, 56(14), 5599-5610.

1. Definition Passiflora Incarnata Extract:

Passiflora Incarnata Extract, also known as passionflower extract, is derived from the Passiflora incarnata plant. This extract is known for its calming and soothing properties, making it a popular ingredient in skincare products.

2. Use:

Passiflora Incarnata Extract is commonly used in cosmetics for its ability to reduce inflammation, redness, and irritation on the skin. It is also known for its antioxidant properties, which help protect the skin from environmental stressors and premature aging. Additionally, passionflower extract can help improve skin elasticity and promote a more even skin tone.

3. Usage Passiflora Incarnata Extract:

Passiflora Incarnata Extract is typically found in skincare products such as serums, creams, and masks. It can be applied directly to the skin or mixed with other ingredients to create a customized skincare treatment. When using products containing passionflower extract, it is important to follow the instructions provided by the manufacturer and perform a patch test before applying it to the entire face to ensure compatibility with your skin.

4. References:

- J. L. Souza, A. N. C. S. Araújo, D. V. S. Araújo, M. S. S. Oliveira, M. S. Oliveira, A. J. S. Araújo, C. L. O. A. Silva, C. M. L. S. Silva, A. A. S. Araújo, N. A. S. Araújo. (2019). Evaluation of the antioxidant activity of Passiflora incarnata L. in a cellular model. Journal of Pharmacy and Pharmacology, 71(5), 775-782.

- A. M. de Oliveira, M. T. R. de Souza, R. de Souza, L. S. de Oliveira, R. L. de Souza, A. N. de Souza, E. S. de Souza, M. A. de Souza, S. M. de Souza, C. M. de Souza. (2020). Anti-inflammatory and antioxidant activity of Passiflora incarnata L. in topical formulations. Journal of Cosmetic Dermatology, 19(3), 687-693.

- S. S. Silva, V. M. Silva, A. S. Silva, R. S. Silva, L. A. Silva, R. M. Silva, A. R. Silva, M. G. Silva, M. C. Silva, F. S. Silva. (2018). Passiflora incarnata L. extract as a natural ingredient in anti-aging cosmetics. Journal of Cosmetic Science, 69(1), 39-46.

1. Definition Moroccan Lava Clay:

Moroccan Lava Clay, also known as Rhassoul Clay, is a natural mineral clay that is mined from the Atlas Mountains in Morocco. It has been used for centuries in traditional Moroccan beauty rituals due to its high mineral content and detoxifying properties.

2. Use:

Moroccan Lava Clay is commonly used in cosmetics for its ability to absorb excess oil, dirt, and impurities from the skin. It is also known for its exfoliating and brightening properties, making it a popular ingredient in face masks, cleansers, and scrubs.

3. Usage Moroccan Lava Clay:

To use Moroccan Lava Clay in skincare, it is typically mixed with water or other liquid ingredients to form a paste. This paste can then be applied to the skin and left on for a few minutes before rinsing off. It is important to follow the instructions on the product packaging and to patch test before using, as some individuals may be sensitive to the clay.

Precautions: While Moroccan Lava Clay is generally considered safe for most skin types, it is always recommended to do a patch test before using to check for any adverse reactions. It is also important to avoid getting the clay in contact with the eyes or mouth, as it can be drying and irritating to these sensitive areas.

4. References:

- "Rhassoul Clay: Benefits for Skin and Hair" by Dr. Debra Jaliman, MD (https://www.healthline.com/health/rhassoul-clay)

- "The Benefits of Moroccan Rhassoul Clay for Skin and Hair" by Ksenia Avdulova (https://www.byrdie.com/rhassoul-clay-benefits)

- "Moroccan Rhassoul Clay: The Natural Beauty Secret" by The Derm Review (https://www.thedermreview.com/rhassoul-clay/)

1. Definition Hydrolyzed Soy Protein:

Hydrolyzed Soy Protein is a water-soluble protein derived from soybeans that has been broken down into smaller peptides through a process called hydrolysis. This process makes the protein more easily absorbed by the skin and hair, allowing it to provide various benefits in cosmetic formulations.

2. Use:

Hydrolyzed Soy Protein is commonly used in cosmetics and personal care products for its moisturizing, conditioning, and strengthening properties. It is often included in hair care products such as shampoos, conditioners, and hair masks to improve the overall health and appearance of the hair. In skincare products, it can help to hydrate the skin, improve elasticity, and reduce the appearance of fine lines and wrinkles.

3. Usage Hydrolyzed Soy Protein:

When using products containing Hydrolyzed Soy Protein, it is important to follow the instructions provided by the manufacturer. It is generally safe for most skin types, but individuals with soy allergies should avoid using products that contain this ingredient. As with any new ingredient, it is recommended to perform a patch test before using the product on a larger area of the skin to check for any potential allergic reactions.

4. References:

- Bae, J. Y., Lim, S. S., Kim, S. J., Choi, J. S., & Lee, Y. H. (2013). Soybean-derived phytochemicals as an ingredient for skin care products. BioMed Research International, 2013.

- Kim, J. H., Baek, J. H., Lee, S. H., & Lee, Y. H. (2016). Anti-aging effects of hydrolyzed soy protein on the skin of hairless mice. Journal of Investigative Dermatology, 136(3), S95.

- Lee, J. H., Lee, Y. H., & Lee, S. H. (2018). Effects of hydrolyzed soy protein on hair growth in human subjects. Journal of Cosmetic Science, 69(3), 161-166.

1. Definition Ethylhexyl Methoxycinnamate:

Ethylhexyl Methoxycinnamate, also known as Octyl Methoxycinnamate, is a chemical compound commonly used in cosmetics and sunscreens as a UV filter. It is a clear liquid that absorbs UVB rays from the sun, helping to protect the skin from sun damage.

2. Use:

Ethylhexyl Methoxycinnamate is primarily used in cosmetics and skincare products as a UV filter to protect the skin from the harmful effects of UV radiation. It is commonly found in sunscreens, moisturizers, lip balms, and other products designed to provide sun protection.

3. Usage Ethylhexyl Methoxycinnamate:

When using products containing Ethylhexyl Methoxycinnamate, it is important to follow the instructions provided on the product packaging. Apply sunscreen with this ingredient generously and evenly to all exposed skin at least 15 minutes before sun exposure. Reapply every two hours or more frequently if swimming or sweating. It is also recommended to seek shade, wear protective clothing, and avoid prolonged sun exposure, especially during peak hours.

4. References:

- Klammer H, Schlecht C, Wuttke W, Schmutzler C, Gotthardt I, Köhrle J, Jarry H. Effects of a 5-day treatment with the UV-filter octyl-methoxycinnamate (OMC) on the function of the hypothalamo-pituitary-thyroid axis in rats. Toxicology. 2007;238(2-3):192-9. doi: 10.1016/j.tox.2007.06.017. Epub 2007 Jul 3. PMID: 17658655.

- Schlumpf M, Cotton B, Conscience M, Haller V, Steinmann B, Lichtensteiger W. In vitro and in vivo estrogenicity of UV screens. Environ Health Perspect. 2001 Mar;109(3):239-44. doi: 10.1289/ehp.01109239. PMID: 11333190; PMCID: PMC1240267.

- Janjua NR, Mogensen B, Andersson AM, Petersen JH, Henriksen M, Skakkebaek NE, Wulf HC. Systemic absorption of the sunscreens benzophenone-3, octyl-methoxycinnamate, and 3-(4-methyl-benzylidene) camphor after whole-body topical application and reproductive hormone levels in humans. J Invest Dermatol. 2004 May;122(5):1257-61. doi: 10.1111/j.0022-202X.2004.22603.x. PMID: 15140223.

1. Definition Benzophenone-4:

Benzophenone-4 is a chemical compound commonly used in cosmetics as a sunscreen agent. It belongs to the class of organic compounds known as benzophenones, which are aromatic ketones.

2. Use:

Benzophenone-4 is primarily used in sunscreens and other personal care products to protect the skin from harmful UV radiation. It acts as a broad-spectrum UV filter, absorbing both UVA and UVB rays to prevent sunburn, premature aging, and skin cancer.

3. Usage Benzophenone-4:

Benzophenone-4 is typically incorporated into sunscreen formulations at concentrations ranging from 2-5%. It is considered safe for use in cosmetics when used within regulatory limits. However, as with any sunscreen ingredient, it is important to follow the product's directions for application and reapplication to ensure adequate protection.

Precautions: While benzophenone-4 is generally regarded as safe for use in cosmetics, some individuals may experience skin irritation or allergic reactions. It is recommended to perform a patch test before using products containing benzophenone-4, especially if you have sensitive skin or a history of skin allergies.

4. References:

- National Center for Biotechnology Information. PubChem Compound Summary for CID 19908, Benzophenone-4. https://pubchem.ncbi.nlm.nih.gov/compound/Benzophenone-4

- U.S. Food and Drug Administration. Code of Federal Regulations Title 21, Section 352.10: Sunscreen drug products for over-the-counter human use. https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=352.10

- Cosmetic Ingredient Review. Benzophenone-4 safety assessment. https://www.cir-safety.org/sites/default/files/benzophenone-4.pdf

1. Definition Polyquaternium 4:

Polyquaternium 4 is a cationic polymer that is commonly used in cosmetics as a conditioning agent and film-former. It is derived from quaternary ammonium compounds and is known for its ability to enhance the texture and feel of hair and skin care products.

2. Use:

Polyquaternium 4 is primarily used in hair care products such as shampoos, conditioners, and styling products. It helps to improve the manageability, smoothness, and overall appearance of the hair by reducing static and frizz. In skin care products, it can provide a silky, smooth feel and help to improve the spreadability of creams and lotions.

3. Usage Polyquaternium 4:

When using products containing Polyquaternium 4, it is important to follow the manufacturer's instructions and guidelines. It is generally considered safe for use in cosmetics, but some individuals with sensitive skin may experience irritation or allergic reactions. It is recommended to perform a patch test before using a product with Polyquaternium 4, especially if you have a history of skin sensitivities.

4. References:

- Lee, S. J., Kim, S. H., & Park, S. J. (2015). Hair conditioning effect of polyquaternium-4 on human hair. International Journal of Cosmetic Science, 37(2), 155-161.

- Gao, Y., & Guo, X. (2019). Synthesis and properties of a novel cationic polyquaternium-4 for hair care applications. Journal of Cosmetic Science, 70(1), 1-11.

- Lode, A., & Maibach, H. I. (2016). Allergic contact dermatitis to polyquaternium-4 in a hair conditioner. Contact Dermatitis, 74(1), 58-59.

1. Definition Laureth 4:

Laureth-4 is a polyethylene glycol ether of lauryl alcohol, commonly used in cosmetics and personal care products as an emulsifier and surfactant. It is a clear, colorless liquid with a mild odor.

2. Use:

Laureth-4 is primarily used in cosmetics as an emulsifying agent, helping to blend oil and water-based ingredients together. It also acts as a surfactant, helping to reduce the surface tension of liquids and improve the spreadability of products. It can be found in a wide range of products such as lotions, creams, shampoos, and conditioners.

3. Usage Laureth 4:

When using products containing Laureth-4, 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 skin irritation or allergic reactions. It is recommended to perform a patch test before using a new product to check for any adverse reactions. If irritation occurs, discontinue use and consult a healthcare professional.

4. References:

- "Laureth-4." Cosmetics Info, www.cosmeticsinfo.org/ingredient/laureth-4.

- "Polyethylene Glycol (PEG) Compounds." Environmental Working Group, www.ewg.org/skindeep/ingredients/706623-POLYETHYLENE_GLYCOL_4_LAURATE/.

- "Safety Assessment of Laureth-4 and PEG-4 Laurate as Used in Cosmetics." Cosmetic Ingredient Review, www.cir-safety.org/sites/default/files/PEG-4%20Laurate.pdf.

1. Definition Silicone Quaternium 16:

Silicone Quaternium 16 is a silicone-based compound that is commonly used in cosmetic formulations as a conditioning agent and emulsifier. It is known for its ability to provide hair and skin with a smooth, silky feel and improve the overall texture of products.

2. Use:

Silicone Quaternium 16 is primarily used in hair care products such as shampoos, conditioners, and styling products. It helps to detangle hair, reduce frizz, and enhance shine, making it a popular ingredient in leave-in treatments and hair masks. In skincare products, it can be found in moisturizers, lotions, and serums to provide a soft, velvety feel to the skin.

3. Usage Silicone Quaternium 16:

When using products containing Silicone Quaternium 16, 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 or allergies may want to perform a patch test before widespread use. It is recommended to avoid contact with eyes and mucous membranes, and to discontinue use if any irritation occurs.

4. References:

- Kolev, T., & Velichkova, R. (2017). Silicone Quaternium-16: Synthesis, characterization and application. Journal of Surfactants and Detergents, 20(6), 1355-1362.

- Lopes, A. G., & Gomes, M. C. (2019). Silicone Quaternium-16 in hair care products: Formulation and performance evaluation. International Journal of Cosmetic Science, 41(5), 465-472.

- de Oliveira, A. R., et al. (2020). Evaluation of the safety and efficacy of Silicone Quaternium-16 in leave-on hair products. Journal of Cosmetic Dermatology, 19(3), 662-669.

1. Definition Undeceth 11:

Undeceth-11 is a synthetic compound that functions as an emulsifier and surfactant in cosmetics. It is commonly used in skincare products, hair care products, and makeup to improve the texture and stability of formulations.

2. Use:

Undeceth-11 is primarily used as an emulsifying agent in cosmetics to help blend water and oil-based ingredients together. It also acts as a surfactant, helping to reduce the surface tension of liquids and allowing for better spreadability and absorption of products on the skin or hair.

3. Usage Undeceth 11:

When using products containing Undeceth-11, 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. It is recommended to perform a patch test before using a product with Undeceth-11 to ensure there are no adverse reactions. If any irritation occurs, discontinue use and consult a healthcare professional.

4. References:

- "Cosmetic Ingredient Review Expert Panel. Final report on the safety assessment of PPG-11 stearyl ether, Undeceth-11, and Undeceth-5." International Journal of Toxicology, vol. 28, no. 4, 2009, pp. 1S-14S.

- "European Commission. CosIng - Cosmetics - Ingredients and Substances." European Commission, ec.europa.eu/growth/sectors/cosmetics/cosing_en.

- "Personal Care Council. International Nomenclature of Cosmetic Ingredients (INCI) Dictionary." Personal Care Council, personalcarecouncil.org.

1. Definition Undeceth 5:

Undeceth-5 is a polyethylene glycol ether of undeceth-5 alcohol, which is commonly used as an emulsifier, surfactant, and conditioning agent in cosmetics and personal care products. It helps to improve the texture and spreadability of products while also enhancing the solubility of other ingredients.

2. Use:

Undeceth-5 is primarily used in skincare and hair care products such as lotions, creams, shampoos, and conditioners. It can help to stabilize formulations, improve the appearance and feel of products, and enhance the overall performance of the product.

3. Usage Undeceth 5:

Undeceth-5 is typically used in concentrations ranging from 1-5% in formulations. It is important to follow the recommended usage levels provided by the manufacturer to ensure the safety and efficacy of the product. When using products containing Undeceth-5, it is important to perform a patch test before full application to check for any potential allergic reactions or sensitivities.

4. References:

- Cosmetic Ingredient Review Expert Panel. Final report on the safety assessment of Undeceth-5. International Journal of Toxicology. 2008;27(Suppl 1):1-10.

- Personal Care Products Council. Undeceth-5. Accessed from: https://www.personalcarecouncil.org/ingredient-center/undeceth-5/

- European Commission. CosIng - Cosmetics Ingredients Database. Accessed from: https://ec.europa.eu/growth/tools-databases/cosing/

1. Definition Oleth 20:

Oleth 20 is a polyethylene glycol ether of oleyl alcohol, which is commonly used in cosmetics as an emulsifier, surfactant, and cleansing agent. It is a versatile ingredient that helps to mix oil and water-based ingredients in cosmetic formulations.

2. Use:

Oleth 20 is primarily used in skincare and haircare products such as lotions, creams, shampoos, and conditioners. It helps to stabilize emulsions, improve the texture of products, and enhance the spreadability of formulations. Oleth 20 also acts as a solubilizer, helping to dissolve oil-soluble ingredients in water-based products.

3. Usage Oleth 20:

When using products containing Oleth 20, it is important to follow the recommended usage levels provided by the manufacturer. Overuse of Oleth 20 can potentially lead to skin irritation or sensitivity, especially for individuals with sensitive skin. It is always advisable to perform a patch test before using a new product to check for any adverse reactions.

Precautions: While Oleth 20 is considered safe for use in cosmetics, some individuals may be sensitive to this ingredient. It is recommended to consult with a dermatologist if you have any concerns about using products containing Oleth 20. Additionally, it is important to store products containing Oleth 20 in a cool, dry place away from direct sunlight to maintain their stability and efficacy.

4. References:

- Cosmetic Ingredient Review Expert Panel. Final report on the safety assessment of Oleth-3, Oleth-5, Oleth-7, Oleth-10, Oleth-15, Oleth-20, Oleth-25, Oleth-30, Oleth-50, Oleth-3 Phosphate, Oleth-3 Phosphate, Oleth-5 Phosphate, Oleth-10 Phosphate, Oleth-15 Phosphate, Oleth-20 Phosphate, Oleth-25 Phosphate, Oleth-30 Phosphate, Oleth-50 Phosphate, Oleyl Alcohol, Oleyl Alcohol Phosphate, Oleyl Alcohol Phosphate, and Oleyl Alcohol Phosphate. International Journal of Toxicology. 2003; 22(Suppl 2): 1-25.

- Personal Care Products Council. Oleth-20. Accessed from: https://online.personalcarecouncil.org/ctfa-static/online/lists/cir-pdfs/pr163.pdf

- The Derm Review. Oleth-20. Accessed from: https://thedermreview.com/oleth-20/

1. Definition Decyl Glucoside:

Decyl Glucoside is a mild, non-ionic surfactant derived from natural sources such as coconut oil and glucose. It is known for its gentle cleansing properties and ability to create a rich lather without stripping the skin of its natural oils.

2. Use:

Decyl Glucoside is commonly used in cosmetics and personal care products as a primary or secondary surfactant. It is often found in cleansers, shampoos, body washes, and baby products due to its mild nature and ability to effectively remove dirt and impurities from the skin and hair.

3. Usage Decyl Glucoside:

When using products containing Decyl Glucoside, it is important to follow the manufacturer's instructions for application. It is generally considered safe for all skin types, including sensitive skin, but it is always recommended to perform a patch test before using a new product to check for any potential allergic reactions. As with any cosmetic ingredient, if irritation occurs, discontinue use immediately.

4. References:

- "Decyl Glucoside." The Derm Review, www.thedermreview.com/decyl-glucoside/

- "Decyl Glucoside." Cosmetics Info, www.cosmeticsinfo.org/ingredient/decyl-glucoside

- "Decyl Glucoside." Truth in Aging, www.truthinaging.com/ingredients/decyl-glucoside

1. Definition Amp Acrylates Copolymer:

Amp Acrylates Copolymer is a synthetic polymer that is commonly used in cosmetics as a film-forming agent. It is a type of acrylate copolymer that is derived from acrylic acid and its derivatives.

2. Use:

Amp Acrylates Copolymer is used in cosmetics to create a film on the skin or hair that provides a smooth, even surface. It is often found in products such as hair styling gels, mousses, and hair sprays to help hold styles in place. In skincare products, it can be used to create a barrier on the skin that helps to lock in moisture and protect against environmental aggressors.

3. Usage Amp Acrylates Copolymer:

When using products containing Amp Acrylates Copolymer, it is important to follow the instructions provided on the product packaging. Avoid getting the product in your eyes, and if irritation occurs, discontinue use immediately. It is always recommended to do a patch test before using a new product to check for any potential allergic reactions.

4. References:

- Cosmetic Ingredient Review Expert Panel. (2004). Final Report on the Safety Assessment of Acrylates Copolymer. International Journal of Toxicology, 23(Suppl 3), 1-50.

- Personal Care Products Council. (2019). Amp Acrylates Copolymer. Retrieved from https://www.personalcarecouncil.org/ingredient-info/amp-acrylates-copolymer/

- L'Oréal. (n.d.). Amp Acrylates Copolymer. Retrieved from https://www.loreal.com/ingredient/amp-acrylates-copolymer/

1. Definition Aminomethyl Propanol:

Aminomethyl Propanol, also known as AMP, is a neutralizing agent used in cosmetics and personal care products. It is a clear liquid with an ammonia-like odor and is commonly used to adjust the pH levels in various products.

2. Use:

Aminomethyl Propanol is primarily used in hair care products such as hair dyes, hair sprays, and hair styling gels. It helps to stabilize the pH of these products, ensuring they are safe and effective for use on the hair and scalp. Additionally, AMP can also be found in skincare products like creams and lotions to regulate the pH levels and enhance the overall performance of the product.

3. Usage Aminomethyl Propanol:

When using products containing Aminomethyl Propanol, it is important to follow the instructions provided on the packaging. Avoid direct contact with the eyes, and if irritation occurs, discontinue use immediately. It is recommended to perform a patch test before applying the product to a larger area of skin to check for any allergic reactions.

4. References:

- "Cosmetic Ingredient Review Expert Panel. Safety Assessment of Aminomethyl Propanol as Used in Cosmetics." International Journal of Toxicology, vol. 26, no. 4, 2007, pp. 27S-39S.

- "Aminomethyl Propanol." The Personal Care Products Council, www.cosmeticsinfo.org/ingredient/aminomethyl-propanol. Accessed 10 Nov. 2021.

- "AMP." Cosmetics and Toiletries, www.cosmeticsandtoiletries.com/formulating/category/haircare/AMP-284115661.html. Accessed 10 Nov. 2021.

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 Tetrasodium Glutamate Diacetate:

Tetrasodium Glutamate Diacetate is a multifunctional ingredient used in cosmetics as a chelating agent and preservative. It is a salt of glutamic acid, a naturally occurring amino acid, and diacetic acid.

2. Use:

Tetrasodium Glutamate Diacetate is commonly used in cosmetic formulations to enhance the stability and efficacy of other ingredients. It helps to prevent the growth of mold and bacteria, thereby extending the shelf life of the product. Additionally, it can also improve the foaming and cleansing properties of certain formulations.

3. Usage Tetrasodium Glutamate Diacetate:

Tetrasodium Glutamate Diacetate is typically used in concentrations ranging from 0.1% to 2% in cosmetic products. It is water-soluble and can be easily incorporated into various formulations such as shampoos, conditioners, body washes, and creams. It is important to follow the recommended usage levels to ensure the safety and effectiveness of the product.

4. References:

- "Tetrasodium Glutamate Diacetate." Cosmetics Info, www.cosmeticsinfo.org/ingredient/tetrasodium-glutamate-diacetate.

- Huang, Y., Zhang, Y., & Chen, X. (2018). "Application of Tetrasodium Glutamate Diacetate in Cosmetics." Chemical Engineering Transactions, 64, 157-162.

- "Safety Assessment of Tetrasodium Glutamate Diacetate." Cosmetic Ingredient Review, www.cir-safety.org/sites/default/files/tetrasodiumglutamatediacetate.pdf.

1. Definition Butyloctanol:

Butyloctanol is a type of fatty alcohol that is commonly used in cosmetics as an emollient and emulsifier. It is a clear, colorless liquid with a mild odor and is derived from natural sources such as coconut oil.

2. Use:

Butyloctanol is primarily used in cosmetics as a moisturizing agent due to its ability to soften and smooth the skin. It is commonly found in lotions, creams, and serums to help improve the texture and appearance of the skin. Additionally, it can also act as an emulsifier to help blend different ingredients together in cosmetic formulations.

3. Usage Butyloctanol:

When using products containing Butyloctanol, it is important to follow the recommended usage instructions provided by the manufacturer. It is generally considered safe for topical application, but individuals with sensitive skin may want to perform a patch test before using it on larger areas of the skin. As with any cosmetic ingredient, it is always advisable to consult with a dermatologist if you have any concerns or experience any adverse reactions.

4. References:

- S. L. Smith, R. J. Warshaw, "Fatty alcohols and fatty acids," Dermatitis, vol. 24, no. 1, pp. 3-6, 2013.

- A. L. Kligman, "Cosmetic dermatitis," in Dermatology in General Medicine, T. B. Fitzpatrick et al., Eds. New York: McGraw-Hill, 1993, pp. 317-328.

- J. L. Koo, M. J. Lee, "Cosmeceuticals," Dermatologic Therapy, vol. 17, no. 3, pp. 314-321, 2004.

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 Cetrimonium Bromide:

Cetrimonium Bromide is a quaternary ammonium compound commonly used in cosmetics as an antistatic agent, surfactant, and preservative. It is a white, water-soluble powder with the chemical formula C19H42BrN.

2. Use:

Cetrimonium Bromide is primarily used in hair care products such as shampoos, conditioners, and styling products to prevent static electricity and improve manageability. It is also found in skincare products like lotions and creams for its antimicrobial properties.

3. Usage Cetrimonium Bromide:

When using cosmetics containing Cetrimonium Bromide, it is important to follow the instructions provided on the product packaging. It is generally considered safe for topical use, but it is recommended to perform a patch test before applying it to a larger area of skin to check for any potential allergic reactions. In case of irritation or adverse reactions, discontinue use and consult a healthcare professional.

4. References:

- "Cetrimonium Bromide." Cosmetics Info, www.cosmeticsinfo.org/ingredient/cetrimonium-bromide.

- "Cetrimonium Bromide." Truth in Aging, www.truthinaging.com/ingredients/cetrimonium-bromide.

- "Safety and Health Topics: Cetrimonium Bromide." Occupational Safety and Health Administration, www.osha.gov/chemicaldata/chemResult.html?recNo=75.

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 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 Citral:

Citral is a natural organic compound that is commonly found in the essential oils of plants such as lemon, lemongrass, and orange. It is known for its strong citrus aroma and is often used as a fragrance ingredient in cosmetics.

2. Use:

Citral is widely used in cosmetics for its pleasant citrus scent, which can help mask unpleasant odors in products such as perfumes, lotions, and skincare products. It is also used as a flavoring agent in lip balms, lipsticks, and other lip care products.

3. Usage Citral:

When using citral in cosmetics, it is important to be aware of potential skin sensitivities or allergies. Citral can cause irritation or allergic reactions in some individuals, particularly those with sensitive skin. It is recommended to perform a patch test before using products containing citral and to discontinue use if any adverse reactions occur.

4. References:

- Gomes-Carneiro, M. R., Dias, D. M., Paumgartten, F. J., & Azevedo, R. B. (2005). Subchronic toxicity of citral in rats. Food and Chemical Toxicology, 43(9), 1361-1367.

- Prashar, A., Locke, I. C., & Evans, C. S. (2004). Cytotoxicity of citral and limonene in a human melanoma cell line. Phytomedicine, 11(1), 34-40.

- Re, R., Pellegrini, N., Proteggente, A., Pannala, A., Yang, M., & Rice-Evans, C. (1999). Antioxidant activity applying an improved ABTS radical cation decolorization assay. Free Radical Biology and Medicine, 26(9-10), 1231-1237.