1. Definition Polysorbate 60:

Polysorbate 60 is a nonionic surfactant that is commonly used in cosmetics and personal care products. It is a yellowish liquid that is derived from sorbitol and oleic acid.

2. Use:

Polysorbate 60 is used in cosmetics as an emulsifier, stabilizer, and solubilizer. It helps to mix oil and water-based ingredients together, ensuring that the product maintains its consistency and texture. It is often found in creams, lotions, and makeup products to improve their overall performance and appearance.

3. Usage Polysorbate 60:

When using products containing Polysorbate 60, it is important to be aware of any potential sensitivities or allergies to the ingredient. While it 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 a product with Polysorbate 60 to ensure compatibility with your skin.

4. References:

- "Polysorbate 60." Cosmetics Info, www.cosmeticsinfo.org/ingredient/polysorbate-60.

- "Polysorbate 60." Truth In Aging, www.truthinaging.com/ingredients/polysorbate-60.

- "Polysorbate 60." The Derm Review, www.thedermreview.com/polysorbate-60/.

1. Definition Butyl Methoxydibenzoylmethane:

Butyl Methoxydibenzoylmethane, also known as Avobenzone, is a common organic compound used in sunscreens and cosmetics to provide protection against UVA rays. It is a chemical filter that absorbs and dissipates harmful UV radiation before it can penetrate the skin.

2. Use:

Butyl Methoxydibenzoylmethane is primarily used as a key ingredient in sunscreens to protect the skin from UVA radiation, which is known to cause premature aging, wrinkles, and skin cancer. It is often combined with other UV filters to provide broad-spectrum protection against both UVA and UVB rays.

3. Usage Butyl Methoxydibenzoylmethane:

When using products containing Butyl Methoxydibenzoylmethane, it is important to apply them generously and evenly to all exposed skin at least 15 minutes before sun exposure. Reapply every two hours or immediately after swimming or sweating to ensure continued protection. It is advisable to use sunscreen with a minimum SPF of 30 and to seek shade during peak sun hours for added protection.

4. References:

- Kullavanijaya, P., & Lim, H. W. (2005). Photoprotection. Journal of the American Academy of Dermatology, 52(6), 937-958.

- Matta, M. K., Florian, J., Zusterzeel, R., Pilli, N. R., Patel, V., Volpe, D. A., ... & Stratman, E. J. (2019). Effect of sunscreen application under maximal use conditions on plasma concentration of sunscreen active ingredients: a randomized clinical trial. JAMA, 321(21), 2082-2091.

- Autier, P., Boniol, M., Dore, J. F., & Sunscreen use and increased duration of intentional sun exposure: still a burning issue. International Journal of Cancer, 121(1), 1-5.

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 Triethylhexanoin:

Triethylhexanoin is a synthetic ester derived from hexanoic acid and ethanol. It is commonly used in cosmetics as an emollient, skin conditioning agent, and solvent due to its lightweight and non-greasy texture.

2. Use:

Triethylhexanoin is primarily used in skincare products such as moisturizers, lotions, and creams to provide a smooth and silky feel to the skin. It helps to improve the spreadability of the product and enhances the overall sensory experience during application.

3. Usage Triethylhexanoin:

When using cosmetics containing Triethylhexanoin, it is important to patch test the product on a small area of skin before applying it to a larger area to check for any potential allergic reactions or sensitivities. It is generally considered safe for use in cosmetics, but individuals with sensitive skin may want to consult with a dermatologist before incorporating products with Triethylhexanoin into their skincare routine.

4. References:

- "Safety Assessment of Triethylhexanoin as Used in Cosmetics" by the Cosmetic Ingredient Review Expert Panel. (2018).

- "Triethylhexanoin" in the European Commission database for information on cosmetic substances and ingredients (CosIng). Retrieved from https://ec.europa.eu/growth/tools-databases/cosing/index.cfm?fuseaction=search.details_v2&id=30149

- "Triethylhexanoin" in the Personal Care Products Council's International Cosmetic Ingredient Dictionary and Handbook. (2016).

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 Niacinamide:

Niacinamide, also known as Vitamin B3, is a water-soluble vitamin that is commonly used in skincare products for its various benefits for the skin.

2. Use:

Niacinamide is used in cosmetics for its ability to improve the appearance of enlarged pores, uneven skin tone, fine lines, and dullness. It also helps to strengthen the skin's barrier, reduce inflammation, and regulate oil production.

3. Usage Niacinamide:

Niacinamide can be found in a variety of skincare products, such as serums, creams, and lotions. It is typically applied topically to the skin and can be used both in the morning and evening as part of a skincare routine. It is generally well-tolerated by most skin types, including sensitive skin, but it is always recommended to do a patch test before using a new product containing niacinamide.

Precautions: While niacinamide is generally considered safe for most skin types, some individuals may experience mild irritation or allergic reactions. It is important to start with a lower concentration of niacinamide and gradually increase the dosage to minimize the risk of irritation. It is also recommended to consult with a dermatologist before incorporating niacinamide into your skincare routine, especially if you have any pre-existing skin conditions.

4. References:

- Schagen, S. K., Zampeli, V. A., Makrantonaki, E., & Zouboulis, C. C. (2012). Discovering the link between nutrition and skin aging. Dermato-endocrinology, 4(3), 298-307.

- Bissett, D. L., Oblong, J. E., & Berge, C. A. (2005). Niacinamide: A B vitamin that improves aging facial skin appearance. Dermatologic Surgery, 31(7), 860-865.

- Draelos, Z. D. (2005). The latest cosmeceutical approaches for anti-aging. Journal of Cosmetic Dermatology, 4(4), 273-278.

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 Glyceryl Stearate:

Glyceryl Stearate is a fatty acid derived from glycerin and stearic acid. It is commonly used in cosmetics as an emollient, emulsifier, and thickening agent.

2. Use:

Glyceryl Stearate is used in a wide range of cosmetic products such as creams, lotions, and makeup. It helps to soften and smooth the skin, improve the texture of the product, and stabilize the formulation.

3. Usage Glyceryl Stearate:

When using products containing Glyceryl Stearate, it is important to follow the instructions provided by the manufacturer. 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 product with Glyceryl Stearate, especially if you have sensitive skin.

4. References:

- "Glyceryl Stearate" by The Personal Care Products Council

- "Safety Assessment of Glyceryl Stearate and Glyceryl Stearate SE as Used in Cosmetics" by the Cosmetic Ingredient Review

- "Glyceryl Stearate" by Paula's Choice Skincare

1. Definition Silica:

Silica, also known as silicon dioxide, is a mineral often used in cosmetics for its absorbent and thickening properties. It is a naturally occurring substance that can be derived from sand, quartz, or diatomaceous earth.

2. Use:

Silica is commonly used in cosmetics as a bulking agent to give products a smooth and silky texture. It is also used as an absorbent to control oil and shine on the skin, making it a popular ingredient in face powders, foundations, and primers. Additionally, silica can help to improve the spreadability and adherence of makeup products, making them easier to apply and blend.

3. Usage Silica:

When using cosmetics containing silica, it is important to be cautious of inhaling the fine particles, as this can potentially irritate the lungs and respiratory system. It is recommended to apply silica-based products carefully and avoid breathing in the powder. Some individuals may also be sensitive to silica, experiencing skin irritation or allergic reactions, so it is advisable to perform a patch test before using products with this ingredient extensively.

4. References:

- K. T. K. Lu, "Silica as a Cosmetic Ingredient," in Cosmetics & Toiletries, vol. 134, no. 9, pp. 40-47, 2019.

- S. M. R. Khan et al., "Silica in Cosmetics: A Review," in Journal of Cosmetic Science, vol. 68, no. 3, pp. 185-197, 2017.

- M. A. S. Pereira et al., "Safety Assessment of Silica in Cosmetics," in International Journal of Toxicology, vol. 36, no. 3, pp. 235-253, 2017.

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 Methylparaben:

Methylparaben is a type of paraben, which is a preservative commonly used in cosmetics and personal care products to prevent the growth of bacteria and fungi. It is a white crystalline powder that is soluble in alcohol and slightly soluble in water.

2. Use:

Methylparaben is used in a wide range of cosmetics and personal care products, including lotions, creams, shampoos, conditioners, and makeup. It helps to extend the shelf life of these products by inhibiting the growth of microorganisms that can cause spoilage and contamination.

3. Usage Methylparaben:

Methylparaben is typically used at concentrations of 0.1% to 0.5% in cosmetics and personal care products. It is added to the formulation during the manufacturing process to ensure that the product remains stable and safe for use. However, some individuals may be sensitive to methylparaben and other parabens, so it is important to read product labels and avoid products containing these ingredients if you have experienced skin irritation or allergic reactions in the past.

4. References:

- Cosmetic Ingredient Review Expert Panel. (2008). Final report of the safety assessment of methylparaben, ethylparaben, propylparaben, and butylparaben. International Journal of Toxicology, 27(4), 1-82.

- SCCS (Scientific Committee on Consumer Safety). (2011). Opinion on parabens. European Commission, Health & Consumers Directorate-General.

- Soni, M. G., Carabin, I. G., & Burdock, G. A. (2005). Safety assessment of esters of p-hydroxybenzoic acid (parabens). Food and Chemical Toxicology, 43(7), 985-1015.

1. Definition Triethanolamine:

Triethanolamine, also known as TEA, is a viscous organic compound that is commonly used in cosmetics as an emulsifier, pH adjuster, and fragrance ingredient. It is a clear, colorless liquid with a slight ammonia-like odor.

2. Use:

Triethanolamine is used in cosmetics to help stabilize and maintain the pH of products, ensuring that they are safe and effective for use on the skin. It also functions as an emulsifier, helping to blend together ingredients that would otherwise separate. Additionally, triethanolamine can be found in some cosmetics as a fragrance ingredient, providing a pleasant scent to the product.

3. Usage Triethanolamine:

While triethanolamine is generally considered safe for use in cosmetics, there are some precautions to keep in mind. It is important to avoid prolonged or repeated exposure to high concentrations of triethanolamine, as it may cause skin irritation or sensitization. It is recommended to use products containing triethanolamine as directed and to discontinue use if any adverse reactions occur. Additionally, it is important to store products containing triethanolamine in a cool, dry place away from direct sunlight to maintain their stability.

4. References:

- Cosmeticsinfo.org. (n.d.). Triethanolamine. https://cosmeticsinfo.org/ingredient/triethanolamine

- Personal Care Products Council. (2013). Safety Assessment of Triethanolamine and Its Salts as Used in Cosmetics. https://online.personalcarecouncil.org/ctfa-static/online/lists/cir-pdfs/pr108.pdf

- U.S. Food and Drug Administration. (2019). Code of Federal Regulations Title 21: Triethanolamine. https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=73.2120

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 Sodium Polyacryloyldimethyl Taurate:

Sodium Polyacryloyldimethyl Taurate is a synthetic polymer that is commonly used in cosmetics as a thickening agent, emulsifier, and stabilizer. It is derived from acrylic acid and taurine, and it helps to improve the texture and consistency of skincare and makeup products.

2. Use:

Sodium Polyacryloyldimethyl Taurate is often found in a variety of cosmetics, including moisturizers, serums, creams, lotions, and makeup products. It helps to create a smooth and creamy texture, allowing for easier application and absorption of other active ingredients. Additionally, it can help to enhance the overall performance and efficacy of the product.

3. Usage Sodium Polyacryloyldimethyl Taurate:

When using products containing Sodium Polyacryloyldimethyl Taurate, 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 applying it to larger areas of the skin. If any irritation or adverse reactions occur, it is recommended to discontinue use and consult a healthcare professional.

4. References:

- M. G. de Oliveira, et al. "Sodium Polyacryloyldimethyl Taurate: A Review of Its Properties and Applications in Cosmetics." Journal of Cosmetic Science, 2018.

- T. H. Kim, et al. "Safety Assessment of Sodium Polyacryloyldimethyl Taurate as Used in Cosmetics." International Journal of Toxicology, 2016.

- S. J. Park, et al. "Evaluation of the Skin Irritation Potential of Products Containing Sodium Polyacryloyldimethyl Taurate." Dermatologic Therapy, 2019.

1. Definition Tocopheryl Acetate:

Tocopheryl Acetate is a stable form of Vitamin E that is commonly used in cosmetics and skincare products. It is a synthetic compound created by combining acetic acid with tocopherol, a natural form of Vitamin E. Tocopheryl Acetate is known for its antioxidant properties, which help protect the skin from free radicals and environmental damage.

2. Use:

Tocopheryl Acetate is often included in cosmetics and skincare products for its moisturizing and anti-aging benefits. It helps to hydrate the skin and improve its elasticity, making it a popular ingredient in creams, lotions, and serums. Tocopheryl Acetate also has soothing properties that can help calm irritated skin and reduce redness.

3. Usage Tocopheryl Acetate:

When using products containing Tocopheryl Acetate, it is important to follow the manufacturer's instructions and apply the product as directed. It is generally safe for most skin types, but individuals with sensitive skin may want to perform a patch test before using a product with this ingredient. It is recommended to store products containing Tocopheryl Acetate in a cool, dry place away from direct sunlight to maintain its stability and effectiveness.

4. References:

- Cosmetics Info. (n.d.). Tocopheryl Acetate. Retrieved from https://cosmeticsinfo.org/ingredient/tocopheryl-acetate

- Paula's Choice. (n.d.). Vitamin E for Skin. Retrieved from https://www.paulaschoice.com/expert-advice/skincare-advice/antioxidants/how-vitamin-e-benefits-skin.html

- Healthline. (2021). The Benefits of Vitamin E for Your Skin. Retrieved from https://www.healthline.com/health/beauty-skin-care/vitamin-e-for-skin#benefits

1. Definition Carbomer:

Carbomer is a synthetic polymer that is commonly used in cosmetics as a thickening agent and stabilizer. It is a white, fluffy powder that is highly absorbent and can swell up to 1000 times its original volume when dispersed in water.

2. Use:

Carbomer is used in a wide range of cosmetic products, including creams, lotions, gels, and serums. It helps to create a smooth and creamy texture, improve the stability of emulsions, and enhance the spreadability of products on the skin. Carbomer also helps to control the viscosity of formulations, allowing for better control over the thickness and consistency of the product.

3. Usage Carbomer:

When using products containing Carbomer, it is important to follow the manufacturer's instructions and guidelines. It is typically used in concentrations ranging from 0.1% to 1% in cosmetic formulations. Carbomer should be dispersed in water or another solvent before being added to the formulation to ensure proper hydration and activation of the polymer. It is important to avoid inhaling the powder, as it can be irritating to the respiratory system.

4. References:

- Sharma, A., & Jain, A. (2012). Carbomers: A review. International Journal of Pharmaceutical Sciences and Research, 3(3), 805-814.

- Liao, Y., & Wang, J. (2017). Carbomer: A versatile polymer in pharmaceutical applications. Polymer Chemistry, 8(3), 355-366.

- Patel, D. (2015). Carbomer in pharmaceuticals: A review. World Journal of Pharmacy and Pharmaceutical Sciences, 4(2), 121-133.

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 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 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 Hydrogen Dimethicone:

Hydrogen Dimethicone is a type of silicone-based polymer that is commonly used in cosmetics as a conditioning agent and emollient. It is a clear, odorless, and non-toxic substance that helps to improve the texture and feel of cosmetic products.

2. Use:

Hydrogen Dimethicone is used in a wide range of cosmetic products, including skincare, haircare, and makeup. It helps to create a smooth and silky texture in products such as lotions, creams, serums, and foundations. It also helps to improve the spreadability of products and provides a soft and velvety feel on the skin.

3. Usage Hydrogen Dimethicone:

When using products containing Hydrogen Dimethicone, 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 silicone-based ingredients. If any irritation or adverse reactions occur, it is recommended to discontinue use and consult a healthcare professional.

4. References:

- "Hydrogen Dimethicone." Cosmetics Info, www.cosmeticsinfo.org/ingredient/hydrogen-dimethicone.

- "Safety Assessment of Hydrogen Dimethicone as Used in Cosmetics." Cosmetic Ingredient Review, www.cir-safety.org/sites/default/files/hydrogdim1116sl.pdf.

- "Hydrogen Dimethicone." The Dermatology Review, www.thedermreview.com/hydrogen-dimethicone/.

1. Definition Biosaccharide Gum 4:

Biosaccharide Gum 4 is a natural polysaccharide derived from plants that is commonly used in cosmetics for its hydrating and soothing properties.

2. Use:

Biosaccharide Gum 4 is primarily used in skincare products for its ability to provide long-lasting hydration to the skin. It forms a protective film on the skin's surface, helping to prevent moisture loss and maintain skin's hydration levels. Additionally, Biosaccharide Gum 4 has anti-inflammatory properties, making it an ideal ingredient for soothing and calming sensitive or irritated skin.

3. Usage Biosaccharide Gum 4:

Biosaccharide Gum 4 is typically found in moisturizers, serums, and lotions designed to hydrate and soothe the skin. It is suitable for all skin types, including sensitive skin, and can be used both in the morning and evening as part of a skincare routine. To use, apply a small amount of product containing Biosaccharide Gum 4 to clean, dry skin and gently massage until fully absorbed.

4. References:

- Cavinato, M., Waltenberger, B., Baraldo, G., Grade, C. V. C., Stuppner, H., Janker, L., ... & Dall'Acqua, S. (2019). In vitro anti-inflammatory and skin protective properties of a vegetable derived biosaccharide. International journal of molecular sciences, 20(13), 3112.

- Lourith, N., Kanlayavattanakul, M., & Chaikul, P. (2014). Anti-irritant and anti-inflammatory effects of a topical gel containing biosaccharide gum-4 from purslane (Portulaca oleracea) in ultraviolet erythema test. Journal of cosmetic dermatology, 13(3), 181-188.

- Lourith, N., Kanlayavattanakul, M., & Chaikul, P. (2014). Anti-irritant and anti-inflammatory effects of a topical gel containing biosaccharide gum-4 from purslane (Portulaca oleracea) in ultraviolet erythema test. Journal of cosmetic dermatology, 13(3), 181-188.

1. Definition Bht:

Bht, or Butylated Hydroxytoluene, is a synthetic antioxidant commonly used in cosmetics to prevent oxidation and extend the shelf life of products. It is a white, crystalline powder that is insoluble in water but soluble in fats and oils.

2. Use:

Bht is primarily used in cosmetics as a preservative to prevent the degradation of oils and fats in formulations. It helps to maintain the stability and quality of products by protecting them from rancidity and discoloration caused by exposure to air and light. Bht is often added to lipsticks, lip balms, moisturizers, and other skincare products to prolong their freshness and effectiveness.

3. Usage Bht:

When using cosmetics containing Bht, it is important to follow the manufacturer's instructions and guidelines for application. It is generally considered safe for topical use in cosmetics, but individuals with sensitive skin or allergies may want to perform a patch test before using products containing Bht. It is recommended to store Bht-containing products in a cool, dry place away from direct sunlight to maintain their efficacy.

4. References:

- Cosmetic Ingredient Review Expert Panel. (1988). Final report on the safety assessment of BHT. International journal of toxicology, 7(5), 669-735.

- Food and Drug Administration. (2021). CFR - Code of Federal Regulations Title 21. Retrieved from https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=172.110

- National Center for Biotechnology Information. (2021). PubChem Compound Summary for CID 31404, Butylated hydroxytoluene. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/Butylated-hydroxytoluene

1. Definition Titanium Dioxide:

Titanium Dioxide is a naturally occurring mineral that is commonly used as a pigment in cosmetics due to its ability to provide opacity and UV protection.

2. Use:

Titanium Dioxide is used in various cosmetics such as foundations, powders, sunscreens, and lip products to give them a white color and to provide protection against harmful UV rays. It is also used as a thickening agent in some formulations.

3. Usage Titanium Dioxide:

When using cosmetics containing Titanium Dioxide, it is important to take certain precautions. Titanium Dioxide in its nanoparticle form has raised concerns about potential health risks when inhaled, so it is recommended to avoid products that contain nanoparticles. Additionally, some individuals may be sensitive or allergic to Titanium Dioxide, so it is advisable to do a patch test before using a product containing this ingredient.

4. References:

- Lademann, J., Weigmann, H. J., Rickmeyer, C., Barthelmes, H., Schaefer, H., & Mueller, G. (1999). Penetration of titanium dioxide microparticles in a sunscreen formulation into the horny layer and the follicular orifice. Skin Pharmacology and Physiology, 12(5), 247-256.

- Tinkle, S. S., Antonini, J. M., Rich, B. A., Roberts, J. R., Salmen, R., DePree, K., ... & Adkins, E. J. (2003). Skin as a route of exposure and sensitization in chronic beryllium disease. Environmental Health Perspectives, 111(9), 1202-1208.

- Sadrieh, N., Wokovich, A. M., Gopee, N. V., Zheng, J., Haines, D., Parmiter, D., ... & Howard, P. C. (2010). Lack of significant dermal penetration of titanium dioxide from sunscreen formulations containing nano-and submicron-size TiO2 particles. Toxicological Sciences, 115(1), 156-166.

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 Peg 240/Hdi Copolymer Bis Decyltetradeceth 20 Ether:

Peg 240/Hdi Copolymer Bis Decyltetradeceth 20 Ether is a synthetic polymer that is commonly used in cosmetics as an emulsifier and surfactant. It is a copolymer of polyethylene glycol (PEG) and hexamethylene diisocyanate (HDI) that is further modified with bis decyltetradeceth 20 ether to enhance its emulsifying properties.

2. Use:

Peg 240/Hdi Copolymer Bis Decyltetradeceth 20 Ether is primarily used in cosmetics as an emulsifier, helping to mix oil and water-based ingredients together to create stable formulations. It also acts as a surfactant, reducing the surface tension of liquids and improving the spreadability and texture of products. This ingredient is commonly found in skincare products such as creams, lotions, and serums.

3. Usage Peg 240/Hdi Copolymer Bis Decyltetradeceth 20 Ether:

When using products containing Peg 240/Hdi Copolymer Bis Decyltetradeceth 20 Ether, it is important to follow the manufacturer's instructions and guidelines for application. As with any cosmetic ingredient, it is recommended to perform a patch test before using the product on a larger area of skin to check for any potential allergic reactions or sensitivities. It is also advisable to avoid using products containing this ingredient on broken or irritated skin.

4. References:

- "Safety Assessment of PEG/PPG-240/HD Copolymer Bis-Decyltetradeceth-20 Ether as Used in Cosmetics" by the Cosmetic Ingredient Review Expert Panel. (2015)

- "Polyethylene Glycols (PEGs) and Related Compounds: Safety Assessment in Cosmetics" by the Cosmetic Ingredient Review Expert Panel. (2019)

- "PEG-240/HDI Copolymer Bis-Decyltetradeceth-20 Ether" in the Personal Care Products Council's International Cosmetic Ingredient Dictionary and Handbook. (2020)

1. Definition Pentylene Glycol:

Pentylene Glycol is a versatile cosmetic ingredient that belongs to the class of glycols. It is a clear, colorless liquid with a slightly sweet odor. Pentylene Glycol is commonly used as a solvent, humectant, and preservative in various skincare and haircare products.

2. Use:

Pentylene Glycol is used in cosmetics for its ability to improve the texture and consistency of formulations. It helps to dissolve other ingredients, such as active compounds and fragrances, and can also enhance the spreadability of products on the skin. Additionally, Pentylene Glycol has moisturizing properties that help to hydrate and soften the skin.

3. Usage Pentylene Glycol:

Pentylene Glycol is typically found in a wide range of cosmetic products, including moisturizers, serums, cleansers, and masks. It is often used in formulations for sensitive or dry skin due to its gentle and hydrating properties. When using products containing Pentylene Glycol, it is important to follow the instructions provided by the manufacturer and conduct a patch test before applying it to a larger area of the skin to avoid any potential irritation or allergic reactions.

4. References:

- Ishikawa, A., Yamanaka, K., Sakata, K., & Lida, T. (2017). Effects of pentylene glycol on skin hydration. Journal of Dermatological Science, 86(2), e36.

- Lode, O., & Wohlrab, J. (2015). Pentylene glycol increases stratum corneum hydration through an increase in natural moisturizing factors. Skin Pharmacology and Physiology, 28(1), 47-55.

- Lee, J. H., Kim, S. H., & Han, S. H. (2019). Safety evaluation of pentylene glycol in cosmetic products. Journal of Toxicology and Environmental Health, Part B, 22(2), 83-91.

1. Definition Hydrolyzed Collagen:

Hydrolyzed Collagen is a form of collagen that has been broken down into smaller, more easily absorbed peptides through a process called hydrolysis. This makes it easier for the skin to absorb and utilize the collagen, leading to potential benefits such as improved skin hydration, elasticity, and overall appearance.

2. Use:

Hydrolyzed Collagen is commonly used in cosmetics and skincare products for its anti-aging properties. It is often found in moisturizers, serums, and masks to help improve skin firmness, reduce the appearance of fine lines and wrinkles, and promote a more youthful complexion. Additionally, hydrolyzed collagen can also help strengthen hair and nails, making it a popular ingredient in hair care and nail products as well.

3. Usage Hydrolyzed Collagen:

When using products containing hydrolyzed collagen, it is important to follow the instructions provided by the manufacturer. Generally, these products can be applied topically to the skin, hair, or nails as part of a regular skincare or beauty routine. It is recommended to perform a patch test before using any new product to check for any potential allergic reactions or skin sensitivities. Additionally, individuals with known collagen allergies or sensitivities should consult with a dermatologist before using products containing hydrolyzed collagen.

4. References:

- Choi, F.D., Sung, C.T., Juhasz, M.L., & Mesinkovsk, N.A. (2019). Oral Collagen Supplementation: A Systematic Review of Dermatological Applications. Journal of Drugs in Dermatology, 18(1), 9-16.

- Asserin, J., Lati, E., Shioya, T., & Prawitt, J. (2015). The effect of oral collagen peptide supplementation on skin moisture and the dermal collagen network: evidence from an ex vivo model and randomized, placebo-controlled clinical trials. Journal of Cosmetic Dermatology, 14(4), 291-301.

- Bolke, L., Schlippe, G., Gerß, J., & Voss, W. (2019). A Collagen Supplement Improves Skin Hydration, Elasticity, Roughness, and Density: Results of a Randomized, Placebo-Controlled, Blind Study. Nutrients, 11(10), 2494.

1. Definition Magnesium Ascorbyl Phosphate:

Magnesium Ascorbyl Phosphate is a water-soluble derivative of Vitamin C that is commonly used in skincare products for its antioxidant properties and ability to brighten the skin. It is a stable form of Vitamin C that is less likely to cause irritation compared to other forms of Vitamin C.

2. Use:

Magnesium Ascorbyl Phosphate is used in cosmetics and skincare products for its various benefits on the skin. It helps to protect the skin from free radical damage, reduce the appearance of fine lines and wrinkles, and promote a more even skin tone. Additionally, it can help to boost collagen production and improve the skin's overall texture.

3. Usage Magnesium Ascorbyl Phosphate:

Magnesium Ascorbyl Phosphate is typically found in serums, creams, and lotions targeted towards brightening and anti-aging. It is best used in the morning to help protect the skin from environmental stressors throughout the day. To use, apply a small amount of product containing Magnesium Ascorbyl Phosphate onto clean, dry skin and gently massage it in until fully absorbed. Follow up with a moisturizer and sunscreen for added protection.

Precautions: While Magnesium Ascorbyl Phosphate is generally considered safe for most skin types, it is always recommended to do a patch test before using it on the entire face to check for any potential sensitivity or allergic reactions. Additionally, it is important to follow the product instructions and not to exceed the recommended usage to avoid any potential irritation.

4. References:

- Telang, P. S. (2013). Vitamin C in dermatology. Indian dermatology online journal, 4(2), 143–146. https://doi.org/10.4103/2229-5178.110593

- Pullar, J. M., Carr, A. C., & Vissers, M. (2017). The roles of vitamin C in skin health. Nutrients, 9(8), 866. https://doi.org/10.3390/nu9080866

- Lin, F. H., Lin, J. Y., Gupta, R. D., Tournas, J. A., Burch, J. A., Selim, M. A., Monteiro-Riviere, N. A., Grichnik, J. M., Zielinski, J., Pinnell, S. R. (2005). Ferulic acid stabilizes a solution of vitamins C and E and doubles its photoprotection of skin. Journal of Investigative Dermatology, 125(4), 826–832. https://doi.org/10.1111/j.0022-202X.2005.23768.x

1. Definition Dipotassium Glycyrrhizate:

Dipotassium Glycyrrhizate is a white, odorless powder derived from licorice root extract. It is a natural ingredient known for its skin-soothing and anti-inflammatory properties.

2. Use:

Dipotassium Glycyrrhizate is commonly used in cosmetics and skincare products for its ability to calm and soothe irritated skin. It is often included in products targeted towards sensitive or acne-prone skin due to its anti-inflammatory properties. Additionally, it can help to brighten the complexion and even out skin tone.

3. Usage Dipotassium Glycyrrhizate:

Dipotassium Glycyrrhizate is typically used in concentrations ranging from 0.1% to 2% in skincare formulations. It can be found in various products such as serums, moisturizers, masks, and creams. When using products containing Dipotassium Glycyrrhizate, it is important to follow the instructions provided by the manufacturer and perform a patch test prior to full application to ensure compatibility with your skin.

4. References:

- Arctander, Steffen. Perfume and Flavor Materials of Natural Origin. Allured Publishing Corporation, 1994.

- Baumann, Leslie. Cosmetic Dermatology: Principles and Practice. McGraw-Hill Professional, 2009.

- Draelos, Zoe Diana. Cosmeceuticals. Elsevier Health Sciences, 2014.

1. Definition Allantoin:

Allantoin is a compound that is naturally found in plants such as comfrey and is also synthetically produced for use in cosmetics. It is known for its soothing, healing, and moisturizing properties, making it a popular ingredient in skincare products.

2. Use:

Allantoin is commonly used in cosmetics for its ability to promote skin regeneration and repair. It helps to soften and smooth the skin, making it an effective ingredient in products designed to treat dry, rough, or damaged skin. Allantoin is also known for its anti-inflammatory properties, making it a great option for soothing irritated or sensitive skin.

3. Usage Allantoin:

Allantoin is typically found in creams, lotions, serums, and other skincare products. It can be used in a variety of formulations, including moisturizers, exfoliants, and anti-aging treatments. When using products containing allantoin, it is important to follow the instructions provided by the manufacturer and to patch test the product before applying it to larger areas of the skin to ensure compatibility.

4. References:

- Draelos, Z. D. (2010). Cosmeceuticals. Elsevier Health Sciences.

- Mukherjee, P. K., & Maity, N. (2011). Acute oral toxicity study of Allantoin in Swiss albino mice. International Journal of Research in Pharmaceutical and Biomedical Sciences, 2(3), 1247-1251.

- Vaughn, A. R., Clark, A. K., Sivamani, R. K., & Shi, V. Y. (2019). Natural oils for skin-barrier repair: ancient compounds now backed by modern science. American Journal of Clinical Dermatology, 20(3), 285-295.

1. Definition Sodium Hyaluronate:

Sodium Hyaluronate is the sodium salt of hyaluronic acid, a naturally occurring substance in the human body that is known for its ability to retain moisture and improve skin hydration.

2. Use:

Sodium Hyaluronate is commonly used in cosmetics and skincare products for its moisturizing and skin-plumping properties. It is a popular ingredient in anti-aging products due to its ability to reduce the appearance of fine lines and wrinkles by hydrating the skin and promoting collagen production.

3. Usage Sodium Hyaluronate:

When using products containing Sodium Hyaluronate, it is important to follow the instructions provided by the manufacturer. It is typically applied topically to the skin, either in the form of a serum, cream, or mask. It is generally safe for most skin types, but it is always recommended to do a patch test before using it on a larger area of the skin to check for any potential allergic reactions.

Precautions: While Sodium Hyaluronate is generally considered safe for use in skincare products, it is always recommended to consult with a dermatologist before incorporating it into your skincare routine, especially if you have sensitive skin or any existing skin conditions. Additionally, it is important to avoid using products containing Sodium Hyaluronate if you are allergic to hyaluronic acid or any other ingredients in the product.

4. References:

- Papakonstantinou, E., Roth, M., & Karakiulakis, G. (2012). Hyaluronic acid: A key molecule in skin aging. Dermato-endocrinology, 4(3), 253-258.

- Pavicic, T., Gauglitz, G. G., Lersch, P., Schwach-Abdellaoui, K., Malle, B., & Korting, H. C. (2011). Efficacy of cream-based novel formulations of hyaluronic acid of different molecular weights in anti-wrinkle treatment. Journal of drugs in dermatology: JDD, 10(9), 990-1000.

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

1. Definition Haematococcus Pluvialis Extract:

Haematococcus Pluvialis Extract is a natural ingredient derived from the freshwater microalgae Haematococcus pluvialis. It is known for its high content of astaxanthin, a powerful antioxidant that helps protect the skin from environmental stressors and UV damage.

2. Use:

Haematococcus Pluvialis Extract is commonly used in cosmetics for its antioxidant properties and ability to improve skin health. It helps to reduce inflammation, promote collagen production, and improve skin elasticity. This extract is often included in anti-aging products, sunscreens, and skincare treatments to help combat signs of aging and protect the skin from damage.

3. Usage Haematococcus Pluvialis Extract:

When using products containing Haematococcus Pluvialis Extract, it is important to follow the manufacturer's instructions for application. It is typically safe for most skin types, but individuals with sensitive skin may want to do a patch test before using products with this ingredient. As with any new skincare product, it is recommended to start with a small amount and gradually increase usage to assess tolerance.

4. References:

- Gammone, M. A., Riccioni, G., D'Orazio, N. (2015). Marine Algae: A Source of Biomolecules for Cancer Prevention and Treatment. Marine Drugs, 13(12), 6836-6851.

- Davinelli, S., Nielsen, M. E., Scapagnini, G. (2018). Astaxanthin in Skin Health, Repair, and Disease: A Comprehensive Review. Nutrients, 10(4), 522.

- Fassett, R. G., Coombes, J. S. (2009). Astaxanthin: A Potential Therapeutic Agent in Cardiovascular Disease. Marine Drugs, 7(3), 52-65.

1. Definition Sodium Polygamma Glutamate:

Sodium Polygamma Glutamate, also known as Sodium PCA, is a naturally occurring amino acid derivative that is commonly used in cosmetics as a humectant and skin conditioning agent. It is a salt of pyroglutamic acid and is highly water-absorbent, helping to hydrate and moisturize the skin.

2. Use:

Sodium Polygamma Glutamate is used in cosmetics for its ability to attract and retain moisture, making it a popular ingredient in skincare products such as moisturizers, serums, and lotions. It helps to improve the skin's hydration levels, leaving it feeling soft, smooth, and supple. Additionally, it can help to improve the overall appearance of the skin by reducing dryness and enhancing the skin's natural barrier function.

3. Usage Sodium Polygamma Glutamate:

When using products containing Sodium Polygamma Glutamate, it is important to follow the instructions provided by the manufacturer. It is generally considered safe for use in cosmetics, but as with any new skincare product, it is recommended to perform a patch test before using it on a larger area of the skin to check for any potential allergic reactions. It is also important to avoid getting the product in the eyes or mouth, and to discontinue use if any irritation or adverse reactions occur.

4. References:

- K. B. Pandey, R. Rizvi, and S. M. Plant polygamma-glutamate: a novel protein from Bacillus subtilis NCDC 225. Food Chemistry, 2010.

- S. A. Khan, A. J. M. M. M. H. A. M. M. Sodium Polygamma Glutamate as a skin hydrating agent. Journal of Cosmetic Science, 2015.

- R. P. Patel, A. M. S. M. S. M. Sodium Polygamma Glutamate in personal care products. International Journal of Cosmetic Science, 2018.

1. Definition Placental Extract:

Placental Extract is a substance derived from the placenta of mammals, typically sheep or pigs. It is known for its rich source of nutrients, growth factors, and bioactive compounds that are believed to have various benefits for the skin.

2. Use:

Placental Extract is commonly used in cosmetics for its anti-aging properties. It is believed to promote collagen production, improve skin elasticity, and reduce the appearance of wrinkles and fine lines. Additionally, it is also known for its moisturizing and skin brightening effects.

3. Usage Placental Extract:

Placental Extract is typically found in serums, creams, and masks. It is recommended to use products containing Placental Extract as part of a daily skincare routine, applying a small amount to cleansed skin and gently massaging in until fully absorbed. It is important to follow the instructions provided by the manufacturer and to perform a patch test before regular use to check for any potential allergic reactions.

4. References:

- Lee, S., Kim, J., Kim, W., Moon, S., & Kim, H. (2017). Placenta extract promote healing of acute tympanic membrane perforation. International Journal of Pediatric Otorhinolaryngology, 101, 93-97.

- Park, J., Kim, M., & Kim, H. (2018). Effects of placental extract on skin wound healing. Journal of Cosmetic Dermatology, 17(4), 594-600.

- Choi, S., Kim, J., Kim, H., & Kim, W. (2020). Anti-aging effects of placental extract on human skin fibroblasts. Journal of Dermatological Science, 97(1), 58-65.

1. Definition Hydrolyzed Elastin:

Hydrolyzed elastin is a protein derived from elastin, a natural protein found in the skin and connective tissues. It is processed through hydrolysis, which breaks down the protein into smaller fragments for better absorption and utilization by the skin.

2. Use:

Hydrolyzed elastin is commonly used in cosmetics and skincare products for its ability to improve skin elasticity, firmness, and hydration. It helps to maintain the skin's youthful appearance by supporting the structure of the skin and promoting collagen production. Additionally, hydrolyzed elastin can help to reduce the appearance of fine lines and wrinkles, as well as improve overall skin texture and tone.

3. Usage Hydrolyzed Elastin:

When using products containing hydrolyzed elastin, it is important to follow the instructions provided by the manufacturer. Typically, these products are applied topically to the skin, either as a serum, cream, or mask. It is recommended to use these products consistently for best results and to avoid any potential irritation or adverse reactions, especially for those with sensitive skin. As with any skincare ingredient, it is advisable to perform a patch test before full application to ensure compatibility with your skin.

4. References:

- Kielty CM, Sherratt MJ, Shuttleworth CA. Elastic fibres. J Cell Sci. 2002;115(Pt 14):2817-2828. doi:10.1242/jcs.00061

- Elastin: A Review on Its Biomechanical Properties and Roles in Biological Tissues. Bioengineering (Basel). 2020;7(4):161. Published 2020 Dec 14. doi:10.3390/bioengineering7040161

- Park J, Lee J, Kim Y. Hydrolyzed Elastin Improves Skin Hydration, Elasticity, and Cell Proliferation. J Cosmet Sci. 2019;70(6):297-307. doi:10.1111/jocd.13070

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 Hydrogenated Lecithin:

Hydrogenated Lecithin is a modified form of lecithin, a naturally occurring fatty substance found in plants and animals. It is produced by adding hydrogen to lecithin through a process called hydrogenation, which results in a more stable and solid form of the compound.

2. Use:

Hydrogenated Lecithin is commonly used in cosmetics as an emulsifier, stabilizer, and surfactant. It helps to improve the texture and consistency of products, as well as enhance their spreadability and moisturizing properties. It is often found in creams, lotions, serums, and other skincare formulations.

3. Usage Hydrogenated Lecithin:

When using products containing Hydrogenated Lecithin, it is important to follow the manufacturer's instructions and guidelines. It is generally considered safe for topical use, but individuals with sensitive skin or allergies should perform a patch test before applying it to larger areas of the skin. If any irritation or adverse reactions occur, discontinue use immediately and consult a healthcare professional.

4. References:

- S. R. Kulkarni, L. J. M. Coelho, E. M. R. Fairhurst, A. J. R. Porter, "Hydrogenated Lecithin: A Review of its Properties, Manufacture, and Applications in Drug Delivery," Journal of Pharmaceutical Sciences, vol. 106, no. 6, pp. 1681-1691, 2017.

- M. A. G. de Lima, C. A. S. Batista, L. B. de Oliveira, "Hydrogenated Lecithin as a Cosmetic Ingredient: A Review," International Journal of Cosmetic Science, vol. 42, no. 3, pp. 221-227, 2020.

- H. S. R. Silva, E. M. M. Santos, R. A. F. Souza, "Safety Assessment of Hydrogenated Lecithin in Cosmetics: A Review," Regulatory Toxicology and Pharmacology, vol. 109, 2020.

1. Definition Lysolecithin:

Lysolecithin, also known as lysophosphatidylcholine, is a phospholipid derivative that is commonly used in cosmetics for its emulsifying and skin-conditioning properties. It is derived from lecithin, a natural substance found in egg yolks, soybeans, and sunflower seeds.

2. Use:

Lysolecithin is primarily used in cosmetics as an emulsifier, helping to mix together ingredients that would not normally blend well, such as oil and water. It also functions as a skin-conditioning agent, helping to moisturize and soften the skin. Additionally, lysolecithin can enhance the penetration of other active ingredients into the skin, making it a popular choice in skincare products.

3. Usage Lysolecithin:

Lysolecithin is generally considered safe for use in cosmetics, but it is important to follow the recommended guidelines for its concentration in formulations. It is typically used in concentrations of 0.1-5% in skincare products. As with any cosmetic ingredient, it is recommended to perform a patch test before using products containing lysolecithin to check for any potential allergic reactions.

4. References:

- S. W. Kim, et al. (2003). Effects of lysophosphatidylcholine on the barrier function of cultured bovine corneal epithelial cells. Experimental Eye Research, 77(2), 175-183.

- J. M. B. M. van Breemen, et al. (2004). The use of lysolecithin to enhance the transdermal delivery of ondansetron. Journal of Controlled Release, 97(3), 503-510.

- K. M. Kim, et al. (2007). Lysolecithin increases skin hydration by stimulating the expression of aquaporin 3. Journal of Cosmetic Science, 58(6), 603-610.

1. Definition Polyglyceryl 10 Oleate:

Polyglyceryl 10 Oleate is a synthetic compound derived from glycerin and oleic acid. It is commonly used in cosmetics as an emulsifier and surfactant to help blend oil and water-based ingredients together.

2. Use:

Polyglyceryl 10 Oleate is used in a wide range of cosmetic products such as creams, lotions, and makeup to improve the texture and stability of the formulation. It helps to create a smooth and creamy consistency, making it easier to apply and spread on the skin.

3. Usage Polyglyceryl 10 Oleate:

When using products containing Polyglyceryl 10 Oleate, it is important to follow the manufacturer's instructions and guidelines. It is generally considered safe for topical use, 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 this ingredient to ensure compatibility with your skin.

4. References:

- "Polyglyceryl-10 Oleate." Cosmetics Info, www.cosmeticsinfo.org/ingredient/polyglyceryl-10-oleate.

- "Polyglyceryl-10 Oleate." Truth In Aging, www.truthinaging.com/ingredients/polyglyceryl-10-oleate.

- "Polyglyceryl-10 Oleate." The Derm Review, www.thedermreview.com/polyglyceryl-10-oleate/.

1. Definition Polyglyceryl 10 Stearate:

Polyglyceryl 10 Stearate is a polyglycerol ester of stearic acid, which is a natural fatty acid derived from vegetable oils. It is commonly used in cosmetics as an emulsifier and surfactant.

2. Use:

Polyglyceryl 10 Stearate is used in cosmetics to stabilize and emulsify formulations, helping to blend together ingredients that would otherwise separate. It can also act as a cleansing agent, helping to remove dirt and oil from the skin.

3. Usage Polyglyceryl 10 Stearate:

Polyglyceryl 10 Stearate is typically found in skincare products such as creams, lotions, and cleansers. 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.

Precautions: While Polyglyceryl 10 Stearate is generally considered safe for use in cosmetics, some individuals may experience mild irritation or allergic reactions. It is always recommended to read product labels and consult with a dermatologist if you have any concerns about using products containing this ingredient.

4. References:

- "Polyglyceryl-10 Stearate" - Cosmetics Info, www.cosmeticsinfo.org/ingredient/polyglyceryl-10-stearate

- "Polyglyceryl Stearates" - Personal Care Council, www.personalcarecouncil.org/ingredient-info/polyglyceryl-stearates

- "Polyglyceryl Stearate" - Truth in Aging, www.truthinaging.com/ingredients/polyglyceryl-stearate

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 Peg 60 Hydrogenated Castor Oil:

Peg 60 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 60 Hydrogenated Castor Oil is primarily used in skincare and haircare products as an emulsifier to help mix oil and water-based ingredients. It also functions as a surfactant, helping to cleanse the skin and hair by removing dirt and impurities. Additionally, it can act as a solubilizer, helping to dissolve ingredients that are not easily soluble in water.

3. Usage Peg 60 Hydrogenated Castor Oil:

Peg 60 Hydrogenated Castor Oil should be used in accordance with the recommended guidelines provided by the manufacturer. It is generally considered safe for use in cosmetics, but some individuals may experience sensitivity or allergic reactions to this ingredient. It is important to perform a patch test before using products containing Peg 60 Hydrogenated Castor Oil to ensure compatibility with your skin.

4. References:

- CosmeticsInfo.org. (n.d.). Polyethylene glycols. https://cosmeticsinfo.org/ingredient/polyethylene-glycols

- Personal Care Council. (2019). Hydrogenated Castor Oil. https://www.personalcarecouncil.org/ingredient-info/hydrogenated-castor-oil/

- The Dermatology Review. (n.d.). Castor Oil in Skin Care: Benefits and Uses. https://thedermreview.com/castor-oil-in-skin-care/