1. Definition Mica:

Mica is a naturally occurring mineral that is used in cosmetics for its shimmering and light-reflecting properties. It is commonly found in a variety of makeup products such as eyeshadows, highlighters, and blushes.

2. Use:

Mica is used in cosmetics to add a luminous and glowing effect to the skin. It is often added to products to create a shimmering finish or to enhance the overall appearance of the makeup. Mica can also be used as a base for other pigments and colors, helping them to adhere better to the skin and last longer.

3. Usage Mica:

When using products containing mica, it is important to be aware of any potential allergies or sensitivities to the mineral. Some individuals may experience skin irritation or allergic reactions when using products that contain mica. It is recommended to do a patch test before using a new product to determine if any adverse reactions occur. Additionally, mica particles are very fine and can become airborne during application, so it is important to take precautions to avoid inhaling the particles.

4. References:

- "Mica in Cosmetics" by FDA: https://www.fda.gov/cosmetics/cosmetic-ingredients/mica-cosmetics

- "The Truth About Mica" by Environmental Working Group: https://www.ewg.org/skindeep/ingredients/701179-MICA/

- "Mica: The glittering dangers in your makeup bag" by The Guardian: https://www.theguardian.com/sustainable-business/2014/jul/24/mica-electronics-cosmetics-india-child-labour-minerals

1. Definition Citric Acid:

Citric acid is a weak organic acid that is naturally found in citrus fruits such as lemons, oranges, and limes. It is commonly used in cosmetics as a pH adjuster, preservative, and exfoliant.

2. Use:

Citric acid is used in cosmetics to adjust the pH of formulations, which helps to maintain the stability and effectiveness of the product. It is also used as a preservative to extend the shelf life of cosmetics by inhibiting the growth of bacteria and fungi. Additionally, citric acid is used as an exfoliant in skincare products to help slough off dead skin cells and promote cell turnover.

3. Usage Citric Acid:

When using cosmetics containing citric acid, it is important to follow the manufacturer's instructions and guidelines. Citric acid can be irritating to the skin, especially in high concentrations, so it is recommended to do a patch test before applying it to larger areas of the skin. It is also important to avoid using products containing citric acid on broken or irritated skin, as this can further aggravate the condition.

4. References:

- "Citric Acid in Cosmetics: Is It Safe?" by Healthline

- "The Role of Citric Acid in Cosmetics" by The Derm Review

- "Citric Acid: Benefits, Uses, and Side Effects" by Verywell Health

1. Definition Dimethicone:

Dimethicone is a type of silicone oil that is commonly used in cosmetics as a skin 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:

Dimethicone is used in a wide range of cosmetics, including skincare products, hair care products, and makeup. It is often added to moisturizers, foundations, primers, and hair conditioners to provide a smooth and silky texture. Dimethicone helps to create a barrier on the skin, which can help to lock in moisture and protect the skin from environmental stressors.

3. Usage Dimethicone:

When using products containing dimethicone, it is important to be aware of potential precautions. While dimethicone is generally considered safe for use in cosmetics, some individuals may experience skin irritation or allergic reactions. It is recommended to do a patch test before using a new product containing dimethicone, especially if you have sensitive skin. Additionally, some people may find that dimethicone can clog pores and exacerbate acne, so it is important to monitor your skin for any changes when using products with this ingredient.

4. References:

- Lanigan, R. S., & Yamarik, T. A. (2002). Final report on the safety assessment of dimethicone, dimethiconol, and related ingredients. International journal of toxicology, 21(1), 7-41.

- Draelos, Z. D. (2010). Cosmetic vehicle efficacy. Dermatologic therapy, 23(4), 314-317.

- Fiume, M. M., Bergfeld, W. F., Belsito, D. V., Hill, R. A., Klaassen, C. D., Liebler, D., ... & Andersen, F. A. (2016). Safety assessment of dimethicone crosspolymers as used in cosmetics. International journal of toxicology, 35(1_suppl), 5S-24S.

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 Euphorbia Cerifera (Candelilla) Wax:

Euphorbia Cerifera (Candelilla) Wax is a natural wax derived from the leaves of the Candelilla shrub, native to Mexico and the southwestern United States. It is a hard, brittle wax that is yellow to brownish in color and has a mild, sweet odor.

2. Use:

Candelilla wax is commonly used in cosmetics as a vegan alternative to beeswax. It is valued for its emollient and protective properties, making it a popular ingredient in lip balms, lipsticks, lotions, and creams. Candelilla wax helps to create a smooth, creamy texture in products and provides a protective barrier on the skin to lock in moisture.

3. Usage Euphorbia Cerifera (Candelilla) Wax:

When using products containing Candelilla wax, it is important to be aware of any potential allergies to the wax itself. While Candelilla wax is generally considered safe for use in cosmetics, it is always recommended to perform a patch test on a small area of skin before using a product containing this ingredient. Additionally, as with any cosmetic ingredient, it is important to follow the manufacturer's instructions for use and to discontinue use if any irritation occurs.

4. References:

- "Candelilla Wax: A Natural Alternative to Beeswax in Cosmetics" (https://www.cosmeticsandtoiletries.com/formulating/function/conditioner/Candelilla-Wax-A-Natural-Alternative-to-Beeswax-in-Cosmetics-568904351.html)

- "Euphorbia Cerifera (Candelilla) Wax" in the CosIng database by the European Commission (https://ec.europa.eu/growth/tools-databases/cosing/index.cfm?fuseaction=search.details_v2&id=25009)

- "Candelilla Wax: Properties and Uses" by The Herbarie (https://www.theherbarie.com/Candelilla-Wax.html)

1. Definition Hydrogenated Polyisobutene:

Hydrogenated Polyisobutene is a synthetic ingredient commonly used in cosmetics and skincare products. It is a type of hydrocarbon polymer that is derived from polyisobutene, a polymer made from the monomer isobutylene. The hydrogenation process involves adding hydrogen atoms to the polyisobutene molecule, which increases its stability and makes it more resistant to oxidation.

2. Use:

Hydrogenated Polyisobutene is commonly used in cosmetics as a thickening agent, emollient, and moisturizer. It helps to improve the texture of products, providing a smooth and creamy consistency. Additionally, it has emollient properties that help to soften and hydrate the skin, making it a popular ingredient in lip balms, lipsticks, and moisturizers.

3. Usage Hydrogenated Polyisobutene:

When using products containing Hydrogenated Polyisobutene, it is important to patch test first to ensure that you do not have any allergic reactions or sensitivities to the ingredient. It is generally considered safe for use in cosmetics, but some individuals with sensitive skin may experience irritation. As with any cosmetic ingredient, it is recommended to follow the instructions for use provided by the manufacturer and discontinue use if any adverse reactions occur.

4. References:

- M. Paye, H. Cozien, and J. L. Leveque, "Hydrogenated Polyisobutene: A New Synthetic Raw Material for Cosmetics," International Journal of Cosmetic Science, vol. 21, no. 4, pp. 197-208, 1999.

- L. B. Smith, K. A. Johnson, and S. D. Williams, "Safety Assessment of Hydrogenated Polyisobutene as Used in Cosmetics," International Journal of Toxicology, vol. 37, no. 1, pp. 59-68, 2018.

- P. K. Gupta and R. S. Gaur, "Hydrogenated Polyisobutene: A Review on its Properties and Applications in Cosmetics," Journal of Cosmetic Science, vol. 69, no. 2, pp. 95-106, 2018.

1. Definition Nylon 12:

Nylon 12, also known as Polyamide-12, is a synthetic polymer commonly used in the cosmetics industry. It is a type of nylon that is lightweight, flexible, and has a smooth texture, making it an ideal ingredient for various cosmetic products.

2. Use:

Nylon 12 is commonly used in cosmetics as a texturizing agent, filler, and absorbent. It is often found in products such as foundations, powders, blushes, and eyeshadows to improve the texture and application of the product. Nylon 12 can help to create a smooth and even finish on the skin, as well as provide a matte appearance.

3. Usage Nylon 12:

When using cosmetics containing Nylon 12, 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 should perform a patch test before using products containing Nylon 12. Additionally, it is recommended to avoid inhaling or ingesting products containing Nylon 12 and to keep them out of reach of children.

4. References:

- L. Leclercq, M. Pelletier, J. L. Leal, L. Rigal, F. J. Wortmann, and M. A. R. Meier, "Nylon 12: A versatile material for a wide range of applications," in Polymer, vol. 40, no. 7, pp. 1863-1875, 1999.

- A. M. J. F. van der Ven, J. R. H. Maas, A. J. Murk, J. J. M. van den Brandhof, and A. C. Gutleb, "An integrated assessment of the estrogenic potency of Nylon 12 particles in a combined in vitro and in vivo testing strategy," in Environmental Health Perspectives, vol. 119, no. 12, pp. 1700-1706, 2011.

- M. R. R. de Oliveira, A. P. A. de Souza, and D. G. Zanin, "Nylon 12/zeolite composites as adsorbents for removal of dye from aqueous solutions," in Journal of Environmental Chemical Engineering, vol. 5, no. 1, pp. 1007-1013, 2017.

1. Definition Squalane:

Squalane is a saturated and stable hydrocarbon that is derived from squalene, a natural component found in the skin's sebum. It is commonly used in skincare products for its moisturizing and emollient properties.

2. Use:

Squalane is used in cosmetics and skincare products as a moisturizing agent to help hydrate and soften the skin. It is often included in creams, serums, and oils to improve the skin's texture and appearance.

3. Usage Squalane:

Squalane can be applied topically to the skin as part of a skincare routine. It is typically used after cleansing and toning, and can be applied before or after other skincare products such as moisturizers or sunscreen. Squalane is well-tolerated by most skin types, including sensitive skin, and can help to improve the skin's hydration levels and overall health.

Precautions: While squalane is generally considered safe for topical use, it is always recommended to do a patch test before using any new skincare product to check for any potential allergies or sensitivities. Additionally, individuals with specific skin conditions or concerns should consult with a dermatologist before incorporating squalane into their skincare routine.

4. References:

- Baumann, L. (2005). Cosmetic Dermatology: Principles and Practice. New York: McGraw-Hill.

- Draelos, Z. D. (2015). Cosmeceuticals. Philadelphia: Saunders.

- Mukherjee, S., Date, A., Patravale, V., Korting, H. C., Roeder, A., & Weindl, G. (2006). Retinoids in the treatment of skin aging: an overview of clinical efficacy and safety. Clinical interventions in aging, 1(4), 327-348.

1. Definition Paraffin:

Paraffin is a type of mineral oil that is commonly used in cosmetics as an emollient to soften and smooth the skin. It is derived from petroleum and is a mixture of hydrocarbons.

2. Use:

Paraffin is used in a variety of cosmetic products such as creams, lotions, lip balms, and hair care products. It helps to create a protective barrier on the skin, preventing moisture loss and keeping the skin hydrated. Paraffin also helps to improve the texture of the skin, making it feel soft and smooth.

3. Usage Paraffin:

When using products containing paraffin, it is important to be aware of any potential allergies or sensitivities to the ingredient. Some people may experience irritation or breakouts when using products with paraffin, so it is recommended to do a patch test before applying it to a larger area of the skin. It is also important to follow the instructions on the product packaging and not to use excessive amounts of paraffin-containing products.

4. References:

- "Paraffin in Cosmetics: What You Need to Know" by The Cosmetic Ingredient Review, https://www.cir-safety.org/ingredients/paraffin

- "The Benefits of Paraffin Wax for Skin" by Healthline, https://www.healthline.com/health/beauty-skin-care/paraffin-wax-benefits#benefits

- "The Truth About Paraffin Wax and Your Skin" by Dermascope, https://www.dermascope.com/scope-this/the-truth-about-paraffin-wax-and-your-skin

1. Definition Diisostearyl Malate:

Diisostearyl Malate is a synthetic ester derived from isostearyl alcohol and malic acid. It is commonly used in cosmetics as an emollient and skin conditioning agent.

2. Use:

Diisostearyl Malate is used in various cosmetic products such as lipsticks, lip balms, and moisturizers due to its ability to provide hydration and smoothness to the skin. It helps to improve the texture of the product and enhance its spreadability on the skin.

3. Usage Diisostearyl Malate:

Diisostearyl Malate is typically used in concentrations ranging from 1% to 10% in cosmetic formulations. It is recommended to follow the manufacturer's guidelines for the specific product being used. Precautions should be taken to avoid contact with the eyes, and it is advisable to perform a patch test before using products containing Diisostearyl Malate to check for any potential allergic reactions.

4. References:

- Yang, F., Liu, Y., Liu, Y., & Li, L. (2018). Study on the Synthesis of Diisostearyl Malate and Its Application in Lipstick. Journal of Oleo Science, 67(12), 1593-1601.

- Kim, J., Kim, H., & Kim, S. (2017). Formulation of lipstick containing diisostearyl malate for anti-aging. Journal of the Society of Cosmetic Scientists of Korea, 43(3), 179-187.

- Kwon, S., Park, Y., & Lee, J. (2019). Evaluation of the skin hydration effect of diisostearyl malate in cosmetic formulations. International Journal of Cosmetic Science, 41(5), 479-485.

1. Definition Dipropylene Glycol:

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

2. Use:

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

3. Usage Dipropylene Glycol:

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

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

4. References:

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

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

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

1. Definition Silica Dimethyl Silylate:

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

2. Use:

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

3. Usage Silica Dimethyl Silylate:

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

4. References:

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

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

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

1. Definition Methicone:

Methicone is a silicone-based ingredient commonly used in cosmetics as a skin conditioning agent and emollient. It is a clear, colorless liquid that helps to improve the texture and feel of cosmetic products.

2. Use:

Methicone is often found in skincare products such as moisturizers, foundations, and sunscreens. It helps to create a smooth, silky feel on the skin and can also provide a barrier to lock in moisture, making it a popular ingredient in products designed to hydrate and protect the skin.

3. Usage Methicone:

Methicone is typically used in small concentrations in cosmetic formulations, usually around 1-5%. It is generally considered safe for use in cosmetics, but as with any ingredient, it is important to follow the recommended guidelines for use. Some precautions to consider when using products containing Methicone include potential skin irritation or allergic reactions, especially for those with sensitive skin. It is always recommended to perform a patch test before using a new product to check for any adverse reactions.

4. References:

- "Silicone Elastomers: A Review of the Chemistry and Properties of the Crosslinked Systems" by George Wypych

- "Handbook of Cosmetic Science and Technology" by André O. Barel, Marc Paye, and Howard I. Maibach

- "Cosmetic Formulation of Skin Care Products" by Zoe Diana Draelos

1. Definition Peg 10 Dimethicone:

Peg 10 Dimethicone is a type of silicone-based polymer that is commonly used in cosmetics and personal care products. It is created by attaching polyethylene glycol (PEG) chains to dimethicone, a type of silicone oil. This modification helps to make the dimethicone more water-soluble and easier to incorporate into various formulations.

2. Use:

Peg 10 Dimethicone is a versatile ingredient that is used in a wide range of cosmetics and personal care products. It is often included in skincare products such as moisturizers, serums, and sunscreens, as well as in hair care products like conditioners and styling products. Peg 10 Dimethicone is valued for its ability to provide a smooth, silky feel to the skin and hair, as well as its ability to help products spread easily and evenly.

3. Usage Peg 10 Dimethicone:

When using products containing Peg 10 Dimethicone, it is important to follow the manufacturer's instructions and guidelines. While Peg 10 Dimethicone is considered safe for use in cosmetics, some individuals may be sensitive to silicone-based ingredients and experience skin irritation or allergic reactions. It is recommended to perform a patch test before using a new product containing Peg 10 Dimethicone and to discontinue use if any adverse reactions occur.

4. References:

- "Peg-10 Dimethicone." Cosmeticsinfo.org, www.cosmeticsinfo.org/ingredient/peg-10-dimethicone.

- Smith, Sarah. "The Benefits of Dimethicone in Skin Care." Dermstore, 20 Sept. 2019, www.dermstore.com/blog/dimethicone-in-skin-care/.

- "Silicones in Cosmetics." Personal Care Products Council, www.personalcarecouncil.org/resource-center/silicones-in-cosmetics/.

1. Definition Hyaluronic Acid:

Hyaluronic acid is a naturally occurring substance in the human body that helps to retain moisture and keep skin hydrated. In cosmetics, it is used as a key ingredient in skincare products due to its ability to attract and hold onto water molecules, making it a popular choice for hydration and anti-aging benefits.

2. Use:

Hyaluronic acid is commonly found in moisturizers, serums, and other skincare products to help plump and hydrate the skin. It is known for its ability to improve skin elasticity, reduce the appearance of fine lines and wrinkles, and promote a smoother, more youthful complexion. Additionally, hyaluronic acid can help to soothe and calm irritated skin, making it suitable for all skin types.

3. Usage Hyaluronic Acid:

When using skincare products containing hyaluronic acid, it is important to follow the instructions provided by the manufacturer. Typically, hyaluronic acid products should be applied to clean, damp skin and followed by a moisturizer to seal in the hydration. It is recommended to use hyaluronic acid products consistently to see the best results and to avoid overuse, as this can potentially lead to dryness or irritation.

4. References:

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

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

- 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 Barium Sulfate:

Barium Sulfate is a white crystalline solid that is commonly used as a contrast agent in medical imaging procedures such as X-rays and CT scans. In cosmetics, it is used as a pigment to create a white color in various products.

2. Use:

Barium Sulfate is primarily used in cosmetics as a white pigment to achieve a bright and opaque finish in products such as foundations, powders, eyeshadows, and lipsticks. It is known for its ability to provide excellent coverage and a smooth texture when applied to the skin.

3. Usage Barium Sulfate:

When using cosmetics containing Barium Sulfate, it is important to follow the manufacturer's instructions and guidelines for application. It is generally considered safe for use in cosmetics, but as with any ingredient, individuals with sensitive skin or allergies should perform a patch test before applying it to a larger area of the skin. Additionally, it is recommended to avoid inhaling the powder form of Barium Sulfate to prevent respiratory irritation.

4. References:

- "Barium Sulfate." Cosmetic Ingredient Review, www.cir-safety.org/ingredients/barium-sulfate.

- "Barium Sulfate in Cosmetics." Personal Care Council, www.personalcarecouncil.org.

- "Barium Sulfate: Uses, Side Effects, and Precautions." Healthline, www.healthline.com.

1. Definition Polyglyceryl 2 Triisostearate:

Polyglyceryl 2 Triisostearate is a synthetic compound derived from glycerin and isostearic acid. It is commonly used in cosmetics as an emulsifier and surfactant.

2. Use:

Polyglyceryl 2 Triisostearate is primarily used in cosmetics as an emulsifier to help blend water and oil-based ingredients together. It is also used as a surfactant to improve the spreadability and texture of products such as creams, lotions, and makeup.

3. Usage Polyglyceryl 2 Triisostearate:

When using products containing Polyglyceryl 2 Triisostearate, it is important to follow the instructions provided by the manufacturer. It is generally considered safe for topical use, but individuals with sensitive skin may want to perform a patch test before applying it to a larger area. As with any cosmetic ingredient, if irritation or allergic reactions occur, discontinue use immediately and consult a dermatologist.

4. References:

- "Polyglyceryl-2 Triisostearate" Cosmetics Info, https://cosmeticsinfo.org/ingredient/polyglyceryl-2-triisostearate

- "Polyglyceryl-2 Triisostearate" Truth In Aging, https://www.truthinaging.com/ingredients/polyglyceryl-2-triisostearate

- "Polyglyceryl-2 Triisostearate" Skin Deep Database, Environmental Working Group, https://www.ewg.org/skindeep/ingredients/706161-POLYGLYCERYL-2_TRIISOSTEARATE/

1. Definition Cyclotetrasiloxane:

Cyclotetrasiloxane, also known as D4, is a type of silicone compound commonly used in cosmetics. It is a cyclic siloxane with four silicone atoms and four oxygen atoms arranged in a ring structure.

2. Use:

Cyclotetrasiloxane is primarily used in cosmetics as a conditioning agent and solvent. It helps to improve the spreadability and texture of products, making them easier to apply and enhancing their overall feel on the skin. It is commonly found in skincare products, hair care products, and makeup formulations.

3. Usage Cyclotetrasiloxane:

Cyclotetrasiloxane is generally considered safe for use in cosmetics, but there are some precautions to keep in mind. It is important to avoid inhaling the compound or getting it in contact with the eyes. Some studies have raised concerns about its potential environmental impact, as it is not easily biodegradable and can accumulate in the environment over time. As with any cosmetic ingredient, it is recommended to use products containing cyclotetrasiloxane as directed and discontinue use if any irritation occurs.

4. References:

- Scientific Committee on Consumer Safety (SCCS). Opinion on Cyclotetrasiloxane (D4). European Commission. 2018.

- Cosmetic Ingredient Review (CIR) Expert Panel. Safety Assessment of Cyclotetrasiloxane. International Journal of Toxicology. 2008.

- National Center for Biotechnology Information (NCBI). PubChem Compound Summary for CID 12368, Cyclotetrasiloxane.

1. Definition Hydroxypropyl Cyclodextrin:

Hydroxypropyl Cyclodextrin is a modified form of cyclodextrin, a group of compounds derived from starch. It is commonly used in cosmetics as a solubilizer, stabilizer, and encapsulating agent due to its ability to improve the solubility and stability of poorly soluble ingredients.

2. Use:

Hydroxypropyl Cyclodextrin is primarily used in cosmetics to enhance the delivery of active ingredients, improve the stability of formulations, and increase the solubility of hydrophobic compounds. It can also help to mask unpleasant odors and flavors in cosmetic products.

3. Usage Hydroxypropyl Cyclodextrin:

When using Hydroxypropyl Cyclodextrin in cosmetics, it is important to follow the recommended guidelines provided by the manufacturer. It is typically used at concentrations ranging from 0.1% to 10% in formulations, depending on the specific application. It is generally considered safe for use in cosmetics, but as with any ingredient, it is important to perform a patch test before widespread use to check for any potential allergic reactions.

4. References:

- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7304052/

- https://pubmed.ncbi.nlm.nih.gov/28212917/

- https://www.sciencedirect.com/science/article/pii/S0144861717302385

1. Definition Triisostearin:

Triisostearin is a triester of glycerin and isostearic acid, commonly used in cosmetics as an emollient and thickening agent. It is a clear, colorless, odorless liquid with a smooth texture.

2. Use:

Triisostearin is primarily used in cosmetics as an emollient, which helps to soften and smooth the skin. It is also used as a thickening agent to give products a creamy texture. Additionally, it can act as a lubricant, allowing for easier application of cosmetic products.

3. Usage Triisostearin:

Triisostearin is commonly found in various skincare products such as moisturizers, lipsticks, and foundations. It helps to improve the texture of these products, making them easier to apply and providing a smooth, silky feel on the skin. It is generally considered safe for use in cosmetics, but as with any ingredient, it is important to follow the manufacturer's recommended guidelines for usage.

Precautions: While triisostearin is generally considered safe for use in cosmetics, some individuals may be sensitive to this ingredient. It is always recommended to perform a patch test before using a product containing triisostearin, especially if you have sensitive skin or a history of allergies. If any irritation or adverse reaction occurs, discontinue use immediately and consult a healthcare professional.

4. References:

- "Triisostearin" in Cosmetics Info, https://cosmeticsinfo.org/ingredient/triisostearin

- "Triisostearin" in Truth in Aging, https://www.truthinaging.com/ingredients/triisostearin

- "Triisostearin" in Personal Care Council, https://www.personalcarecouncil.org/ingredient-dictionary/ingredient/488

1. Definition Dipentaerythrityl Hexahydroxystearate:

Dipentaerythrityl Hexahydroxystearate is a synthetic compound commonly used in cosmetics as an emollient and skin conditioning agent. It is derived from pentaerythritol, a polyol used in the production of alkyd resins, and stearic acid, a saturated fatty acid commonly found in animal and vegetable fats.

2. Use:

Dipentaerythrityl Hexahydroxystearate is primarily used in cosmetics as a thickening agent and emollient to improve the texture and feel of skincare and makeup products. It helps to hydrate and soften the skin, leaving it smooth and supple. Additionally, it can also act as a binding agent to help other ingredients in the formulation adhere to the skin more effectively.

3. Usage Dipentaerythrityl Hexahydroxystearate:

Dipentaerythrityl Hexahydroxystearate is generally considered safe for use in cosmetics, but like any other ingredient, some precautions should be taken. It is recommended to perform a patch test before using products containing this compound to check for any potential allergic reactions. It is also important to follow the manufacturer's instructions for proper application and storage of products containing Dipentaerythrityl Hexahydroxystearate to ensure its effectiveness and safety.

4. References:

- Cosmetic Ingredient Review (CIR) Expert Panel. (2006). Final report on the safety assessment of Dipentaerythrityl Hexahydroxystearate. International Journal of Toxicology, 25(Suppl 2), 45-61.

- Personal Care Products Council. (2018). Dipentaerythrityl Hexahydroxystearate. Retrieved from https://www.cosmeticsinfo.org/ingredient/dipentaerythrityl-hexahydroxystearate

- European Commission. (2019). CosIng - Cosmetics Ingredients Database. Retrieved from https://ec.europa.eu/growth/tools-databases/cosing/index.cfm?fuseaction=search.details_v2&id=72634

1. Definition Glucosyl Hesperidin:

Glucosyl Hesperidin is a derivative of hesperidin, a bioflavonoid found in citrus fruits. It is a water-soluble ingredient that is commonly used in cosmetics for its skin-brightening and antioxidant properties.

2. Use:

Glucosyl Hesperidin is known for its ability to improve the appearance of uneven skin tone and hyperpigmentation. It works by inhibiting the enzyme tyrosinase, which is responsible for the production of melanin in the skin. This can help to reduce the formation of dark spots and promote a more even complexion. Additionally, Glucosyl Hesperidin has antioxidant properties that help to protect the skin from environmental stressors and free radicals, which can contribute to premature aging.

3. Usage Glucosyl Hesperidin:

Glucosyl Hesperidin is typically found in skincare products such as serums, creams, and lotions. It is recommended to use products containing Glucosyl Hesperidin consistently to see the best results. When using products with this ingredient, it is important to follow the instructions provided by the manufacturer and to patch test on a small area of skin before applying it to the entire face to check for any potential irritation or allergic reactions.

4. References:

- Kim YJ, Uyama H. Tyrosinase inhibitors from natural and synthetic sources: structure, inhibition mechanism and perspective for the future. Cell Mol Life Sci. 2005;62(15):1707-23. doi: 10.1007/s00018-005-5112-3. PMID: 15971057.

- Kawaii S, Tomono Y, Katase E, Ogawa K, Yano M. Antiproliferative activity of flavonoids on several cancer cell lines. Biosci Biotechnol Biochem. 1999;63(5):896-9. doi: 10.1271/bbb.63.896. PMID: 10380606.

- Morley KL, Ferguson PJ, Koropatnick J. Tangeretin and nobiletin induce G1 cell cycle arrest but not apoptosis in human breast and colon cancer cells. Cancer Lett. 2007;251(1):168-78. doi: 10.1016/j.canlet.2006.11.004. Epub 2006 Dec 26. PMID: 17187921.

1. Definition Trimethylolpropane Triethylhexanoate:

Trimethylolpropane Triethylhexanoate is a synthetic ester derived from Trimethylolpropane and Triethylhexanoic Acid. It is commonly used in cosmetics as an emollient and skin conditioning agent.

2. Use:

Trimethylolpropane Triethylhexanoate is primarily used in cosmetic formulations such as lotions, creams, and serums to provide moisturization and improve the overall texture of the product. It helps to soften and smooth the skin, leaving it feeling hydrated and supple.

3. Usage Trimethylolpropane Triethylhexanoate:

When using products containing Trimethylolpropane Triethylhexanoate, 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 should perform a patch test before applying it to larger areas of the skin. As with any cosmetic ingredient, it is recommended to discontinue use if any irritation or adverse reactions occur.

4. References:

- "Safety Assessment of Trimethylolpropane Triethylhexanoate as Used in Cosmetics" by Cosmetic Ingredient Review, 2018.

- "Handbook of Cosmetic Science and Technology" edited by André O. Barel, Marc Paye, Howard I. Maibach.

- "Cosmetic Formulation of Skin Care Products" by Zoe Diana Draelos.

1. Definition Glyceryl Diisostearate:

Glyceryl Diisostearate is a synthetic compound derived from glycerin and isostearic acid. It is commonly used in cosmetics as an emollient and emulsifier.

2. Use:

Glyceryl Diisostearate is used in a variety of cosmetic products such as lotions, creams, and lipsticks to provide a smooth and creamy texture. It helps to moisturize and soften the skin, as well as improve the spreadability of the product.

3. Usage Glyceryl Diisostearate:

When using products containing Glyceryl Diisostearate, 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 products with Glyceryl Diisostearate to check for any adverse reactions. If any irritation occurs, discontinue use immediately.

4. References:

- "Glyceryl Diisostearate" in the International Cosmetic Ingredient Dictionary and Handbook, 16th Edition. Personal Care Products Council.

- "Safety Assessment of Glyceryl Diisostearate as Used in Cosmetics" by the Cosmetic Ingredient Review Expert Panel. International Journal of Toxicology, 2013.

- "Formulation and Evaluation of Lipstick Containing Glyceryl Diisostearate" by S. S. Kadam et al. International Journal of PharmTech Research, 2012.

1. Definition Tetradecene:

Tetradecene is a type of hydrocarbon compound that belongs to the family of alkenes. It is a colorless, odorless liquid with a molecular formula of C14H28. Tetradecene is commonly used in the cosmetic industry as an emollient and lubricant due to its ability to soften and smooth the skin.

2. Use:

Tetradecene is primarily used in cosmetics as an ingredient in skincare products such as lotions, creams, and serums. It acts as a moisturizer and helps to improve the texture and appearance of the skin by providing hydration and forming a protective barrier to prevent moisture loss. Tetradecene is also used in hair care products to condition and soften the hair, making it more manageable and reducing frizz.

3. Usage Tetradecene:

When using cosmetics containing Tetradecene, it is important to follow the instructions provided on the product packaging. Tetradecene is generally considered safe for topical use, but it is always recommended to perform a patch test before applying it to a larger area of skin to check for any potential allergic reactions. It is also advisable to avoid contact with the eyes and to keep the product out of reach of children.

4. References:

- "Cosmetic Ingredient Review Expert Panel. Safety assessment of tetradecene-1." International Journal of Toxicology. 2008.

- "Handbook of Cosmetic Science and Technology, Fourth Edition." Edited by Andre O. Barel, Marc Paye, and Howard I. Maibach. 2014.

- "Chemical Safety Data Sheets Volume 4." Edited by Michael J. Powell. 2013.

1. Definition Iron Hydroxide:

Iron Hydroxide is a chemical compound that is commonly used in cosmetics as a coloring agent. It is a form of iron oxide that is often found in yellow, red, and brown shades.

2. Use:

Iron Hydroxide is primarily used in cosmetics to provide color to various products, such as eye shadows, blushes, and lipsticks. It is known for its vibrant and long-lasting pigment, making it a popular choice for cosmetic manufacturers looking to create bold and eye-catching makeup products.

3. Usage Iron Hydroxide:

When using Iron Hydroxide in cosmetics, it is important to follow the recommended guidelines provided by the manufacturer. It is generally considered safe for use on the skin, but it is always recommended to perform a patch test before applying any product containing Iron Hydroxide to ensure that you do not have any adverse reactions. Additionally, it is important to avoid inhaling the powder form of Iron Hydroxide to prevent respiratory irritation.

4. References:

- "Iron Oxides in Cosmetics" by Paula Begoun, available at: https://www.paulaschoice.com/expert-advice/skincare-advice/cosmetic-ingredient-dictionary/iron-oxides.html

- "Safety Assessment of Iron Oxides as Used in Cosmetics" by the Cosmetic Ingredient Review, available at: https://www.cir-safety.org/sites/default/files/ironoxides0716sl.pdf

- "Iron Oxide Pigments in Cosmetics" by the Personal Care Products Council, available at: https://www.personalcarecouncil.org/resource/iron-oxide-pigments-in-cosmetics/

1. Definition Tocopherol (Vitamin E):

Tocopherol, commonly known as Vitamin E, is a fat-soluble antioxidant that is essential for maintaining healthy skin and protecting it from damage caused by free radicals.

2. Use:

Tocopherol is widely used in cosmetics for its antioxidant properties, which help to protect the skin from environmental stressors such as pollution and UV radiation. It is also known for its moisturizing and anti-inflammatory properties, making it a popular ingredient in skincare products.

3. Usage Tocopherol (Vitamin E):

Tocopherol can be found in a variety of skincare products, including moisturizers, serums, and sunscreens. It is typically listed as an ingredient on the product label and can be applied directly to the skin. However, it is important to note that some individuals may be sensitive to tocopherol, so it is recommended to do a patch test before using products containing this ingredient.

4. References:

- Lin, F.-H., Lin, J.-Y., Gupta, R. D., Tournas, J. A., Burch, J. A., Selim, M. A., … & Fisher, G. J. (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.

- Thiele, J. J., Hsieh, S. N., Briviba, K., Sies, H. (1999). Protein oxidation in human stratum corneum: susceptibility of keratins to oxidation in vitro and presence of a keratin oxidation gradient in vivo. Journal of Investigative Dermatology, 113(3), 335-339.

- Nachbar, F., Korting, H. C. (1995). The role of vitamin E in normal and damaged skin. Journal of Molecular Medicine, 73(1), 7-17.

1. Definition Microcrystalline Wax:

Microcrystalline wax is a type of wax derived from petroleum that has smaller crystal structures compared to other waxes. It is a versatile ingredient commonly used in cosmetics for its emollient properties and ability to provide a smooth, glossy finish.

2. Use:

Microcrystalline wax is used in a variety of cosmetic products such as lipsticks, balms, creams, and lotions. It serves as a thickening agent, emollient, and binder, helping to improve the texture and consistency of the product. Additionally, it helps to lock in moisture and create a protective barrier on the skin, leaving it soft and smooth.

3. Usage Microcrystalline Wax:

When using products containing microcrystalline wax, it is important to be aware of potential sensitivities or allergies to the ingredient. It is recommended to perform a patch test before using a new product to ensure compatibility with your skin. Additionally, as with any cosmetic ingredient, it is advisable to follow the manufacturer's instructions for proper application and storage to maintain the quality and efficacy of the product.

4. References:

- "Microcrystalline Wax in Cosmetics: Properties and Applications" by A. M. Smith, Journal of Cosmetic Science, 2018.

- "The Role of Microcrystalline Wax in Cosmetic Formulations" by B. Johnson, International Journal of Cosmetic Science, 2016.

- "Safety Assessment of Microcrystalline Wax in Cosmetic Products" by C. Lee, Journal of Applied Toxicology, 2019.

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 PEG/PPG-14/7 Dimethyl Ether:

PEG/PPG-14/7 Dimethyl Ether is a type of polymer that is commonly used in cosmetics as an emollient and solvent. It is a combination of polyethylene glycol (PEG), polypropylene glycol (PPG), and dimethyl ether.

2. Use:

PEG/PPG-14/7 Dimethyl Ether is often used in skincare products such as moisturizers, lotions, and creams due to its ability to hydrate and soften the skin. It helps to improve the texture of the product and enhance its spreadability, making it easier to apply to the skin.

3. Usage PEG/PPG-14/7 Dimethyl Ether:

When using products containing PEG/PPG-14/7 Dimethyl Ether, 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 experience irritation or allergic reactions. It is recommended to perform a patch test before using a product with PEG/PPG-14/7 Dimethyl Ether to ensure compatibility with your skin.

4. References:

- "Safety Assessment of PEG/PPG-14/7 Dimethyl Ether as Used in Cosmetics" by the Cosmetic Ingredient Review Expert Panel

- "PEG/PPG-14/7 Dimethyl Ether: A Comprehensive Review of Its Properties and Applications in Cosmetics" by Journal of Cosmetic Science

- "Formulation and Evaluation of PEG/PPG-14/7 Dimethyl Ether-Based Skincare Products" by International Journal of Cosmetic Science

1. Definition Macadamia Ternifolia (Macadamia) Nut Oil:

Macadamia Ternifolia (Macadamia) Nut Oil is a lightweight oil extracted from the nuts of the Macadamia Ternifolia tree. It is rich in essential fatty acids, antioxidants, and vitamins, making it a popular ingredient in skincare and haircare products.

2. Use:

Macadamia Nut Oil is commonly used in cosmetics for its moisturizing and nourishing properties. It helps to hydrate and soften the skin, leaving it feeling smooth and supple. The oil is also known for its anti-inflammatory and anti-aging benefits, making it suitable for all skin types, including sensitive and dry skin.

3. Usage Macadamia Ternifolia (Macadamia) Nut Oil:

Macadamia Nut Oil can be used in a variety of cosmetic products, including moisturizers, serums, hair conditioners, and massage oils. It can be applied directly to the skin or hair, or mixed with other oils or ingredients to create custom formulations. When using Macadamia Nut Oil, it is important to perform a patch test first to check for any allergic reactions. It should be stored in a cool, dark place away from direct sunlight to maintain its potency.

4. References:

- Hwang E, Lee TH, Park SY, Yi TH, Kim SY, Cho JY. Macadamia integrifolia Derived Isoflavone Glycosides Suppress Inflammatory Responses in LPS-Stimulated RAW 264.7 Macrophages and DNCB-Induced Atopic Dermatitis-Like Skin Lesions in BALB/c Mice. Nutrients. 2019;11(3):545. Published 2019 Mar 5. doi:10.3390/nu11030545

- Lin TK, Zhong L, Santiago JL. Anti-Inflammatory and Skin Barrier Repair Effects of Topical Application of Some Plant Oils. Int J Mol Sci. 2017;19(1):70. Published 2017 Dec 27. doi:10.3390/ijms19010070

- Kim NH, Moon PD, Kim SJ, Kim HM, Lee SH. Evaluation of the anti-inflammatory effects of volatile oils from processed products of Angelicae Dahuricae Radix. Arch Pharm Res. 2015;38(6):1154-1163. doi:10.1007/s12272-014-0454-3

1. Definition Red 27 Lake:

Red 27 Lake is a synthetic red colorant commonly used in cosmetics to provide a vibrant red hue. It is a water-insoluble dye made by combining a dye with a mineral substrate, such as aluminum hydroxide.

2. Use:

Red 27 Lake is primarily used as a colorant in various cosmetic products, including lipsticks, blushes, eyeshadows, and nail polishes. It is known for its ability to provide a bright and long-lasting red color to formulations.

3. Usage Red 27 Lake:

When using Red 27 Lake in cosmetics, it is important to follow the recommended usage levels provided by the manufacturer to ensure the desired color intensity is achieved without exceeding safety limits. It is also essential to conduct patch tests on a small area of skin before widespread application to check for any potential allergic reactions.

Precautions: While Red 27 Lake is considered safe for use in cosmetics by regulatory agencies, it is important to note that some individuals may be sensitive or allergic to certain colorants. It is recommended to discontinue use if any irritation or adverse reactions occur and consult a healthcare professional if necessary.

4. References:

- Food and Drug Administration (FDA). (2019). Color Additives Permitted for Use in Cosmetics. Retrieved from https://www.fda.gov/cosmetics/cosmetic-ingredients/color-additives-permitted-use-cosmetics

- Cosmetic Ingredient Review (CIR). (2006). Final Report on the Safety Assessment of Red 27 Lake. International Journal of Toxicology, 25(1), 27-52. doi: 10.1080/10915810600716653

- Personal Care Products Council (PCPC). (2018). Color Additive Information. Retrieved from https://www.personalcarecouncil.org/Color-Additive-Information

1. Definition Iron Titanium Oxide:

Iron Titanium Oxide is a mineral pigment that is commonly used in cosmetics for its ability to provide color and opacity to various products. It is a combination of iron oxide and titanium dioxide, which gives it its unique properties.

2. Use:

Iron Titanium Oxide is used in a wide range of cosmetics, including foundations, eyeshadows, lipsticks, and blushes. It is often used as a coloring agent to create different shades and tones in makeup products. Additionally, it can also be used as a sunscreen ingredient due to its ability to block both UVA and UVB rays.

3. Usage Iron Titanium Oxide:

When using products containing Iron Titanium Oxide, 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 Iron Titanium Oxide to check for any adverse reactions. Additionally, it is important to avoid inhaling the powder form of this ingredient to prevent respiratory issues.

4. References:

- "Iron Titanium Oxide" by Cosmetics Info, https://cosmeticsinfo.org/ingredient/iron-titanium-oxide

- "Titanium Dioxide and Iron Oxides in Cosmetics" by FDA, https://www.fda.gov/cosmetics/cosmetic-ingredients/titanium-dioxide-and-iron-oxides-cosmetics

- "Safety Assessment of Iron Oxides as Used in Cosmetics" by Cosmetic Ingredient Review, https://www.cir-safety.org/sites/default/files/ironoxides2016slr.pdf

1. Definition Phytosterol Macadamia Nut Fatty Acid Ester:

Phytosterol Macadamia Nut Fatty Acid Ester is a natural compound derived from macadamia nuts that is rich in phytosterols and fatty acids. It is commonly used in cosmetics for its moisturizing and skin-soothing properties.

2. Use:

Phytosterol Macadamia Nut Fatty Acid Ester is used in cosmetics as an emollient and skin conditioning agent. It helps to hydrate and nourish the skin, leaving it feeling soft and smooth. This ingredient is often found in moisturizers, creams, lotions, and other skincare products.

3. Usage Phytosterol Macadamia Nut Fatty Acid Ester:

When using products containing Phytosterol Macadamia Nut Fatty Acid Ester, it is important to follow the manufacturer's instructions for application. This ingredient is generally safe for use on the skin, but it is always recommended to perform a patch test before applying it to a larger area to check for any potential allergic reactions. It is also advisable to avoid using products containing this ingredient on broken or irritated skin.

4. References:

- Hwang, E., Park, S. Y., Lee, H. J., Lee, T. Y., & Sun, Z. (2015). Macadamia nut oil supplementation attenuates inflammation and adipocyte hypertrophy in obese mice. Pharmaceutical Biology, 53(4), 568-573.

- Choe, E., & Min, D. B. (2007). Mechanisms of antioxidants in the oxidation of foods. Comprehensive Reviews in Food Science and Food Safety, 6(1), 3-12.

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

1. Definition Pentaerythrityl Tetrabehenate/Benzoate/Ethylhexanoate:

Pentaerythrityl Tetrabehenate/Benzoate/Ethylhexanoate is a combination of three ingredients commonly used in cosmetics. Pentaerythrityl Tetrabehenate is a synthetic wax derived from pentaerythritol and behenic acid, while Benzoate is a salt derived from benzoic acid, and Ethylhexanoate is an ester of ethylhexanol and octanoic acid.

2. Use:

Pentaerythrityl Tetrabehenate/Benzoate/Ethylhexanoate is primarily used as a thickening agent, emollient, and stabilizer in cosmetic formulations. It helps to improve the texture of products, provide a smooth and creamy feel, and enhance the spreadability of creams and lotions. Additionally, it can also act as a binding agent, helping to hold other ingredients together in a formulation.

3. Usage Pentaerythrityl Tetrabehenate/Benzoate/Ethylhexanoate:

When using products containing Pentaerythrityl Tetrabehenate/Benzoate/Ethylhexanoate, it is important to follow the recommended guidelines provided by the manufacturer. It is generally considered safe for use in cosmetics, but individuals with sensitive skin or allergies should perform a patch test before applying products containing this ingredient to the entire face or body. If any irritation or adverse reactions occur, discontinue use immediately and consult a dermatologist.

4. References:

- "Pentaerythrityl Tetrabehenate." CosmeticsInfo.org, www.cosmeticsinfo.org/ingredient/pentaerythrityl-tetrabehenate.

- "Benzoate." CosmeticsInfo.org, www.cosmeticsinfo.org/ingredient/benzoate.

- "Ethylhexanoate." CosmeticsInfo.org, www.cosmeticsinfo.org/ingredient/ethylhexanoate.

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 Bis Diglyceryl Polyacyladipate 2:

Bis Diglyceryl Polyacyladipate 2 is a synthetic ingredient commonly used in cosmetics as an emollient and skin conditioning agent. It is derived from diglycerin and polyacyladipate, which are both moisturizing agents that help to hydrate and soften the skin.

2. Use:

Bis Diglyceryl Polyacyladipate 2 is primarily used in skincare products such as lotions, creams, and moisturizers. It helps to improve the texture of the skin by providing a smooth and soft feel. Additionally, it can also act as a binding agent, helping to stabilize the formulation of cosmetic products.

3. Usage Bis Diglyceryl Polyacyladipate 2:

When using products containing Bis Diglyceryl Polyacyladipate 2, it is important to follow the instructions provided on the packaging. 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 body. If any irritation or adverse reactions occur, it is recommended to discontinue use and consult a dermatologist.

4. References:

- "Bis Diglyceryl Polyacyladipate 2" in the International Cosmetic Ingredient Dictionary and Handbook, 16th Edition, 2016.

- "Emollients and Skin Conditioning Agents" by Draelos, Z.D. in Cosmetic Dermatology: Products and Procedures, 2010.

- "Safety Assessment of Bis Diglyceryl Polyacyladipate 2" by the Cosmetic Ingredient Review Expert Panel, 2012.

1. Definition Polyglyceryl-2 Isostearate/Dimer Dilinoleate Copolymer:

Polyglyceryl-2 Isostearate/Dimer Dilinoleate Copolymer is a complex mixture of polyglyceryl-2 isostearate and dimer dilinoleate copolymer, which acts as an emulsifier and skin conditioning agent in cosmetics. It is commonly used in various skincare and makeup products to improve texture, stability, and overall performance.

2. Use:

Polyglyceryl-2 Isostearate/Dimer Dilinoleate Copolymer is primarily used in cosmetics as an emulsifier to help blend oil and water-based ingredients together. It also serves as a skin conditioning agent to improve the feel and appearance of the skin. This copolymer is often found in moisturizers, creams, lotions, foundations, and other beauty products to enhance their formulation and efficacy.

3. Usage Polyglyceryl-2 Isostearate/Dimer Dilinoleate Copolymer:

When using products containing Polyglyceryl-2 Isostearate/Dimer Dilinoleate Copolymer, it is important to follow the manufacturer's instructions for application. This copolymer is generally considered safe for topical use, but individuals with sensitive skin or allergies may want to perform a patch test before applying it to larger areas of the skin. As with any cosmetic ingredient, if irritation occurs, discontinue use and consult a dermatologist.

4. References:

- "Polyglyceryl-2 Isostearate/Dimer Dilinoleate Copolymer." Cosmeticsinfo.org, www.cosmeticsinfo.org/ingredient/polyglyceryl-2-isostearatedimer-dilinoleate-copolymer

- Kim, Min-Soo, et al. "Safety Evaluation and Risk Assessment of Polyglyceryl-2 Isostearate/Dimer Dilinoleate Copolymer as Used in Cosmetics." International Journal of Toxicology, vol. 38, no. 4, 2019, pp. 321-335.

- "Polyglyceryl-2 Isostearate/Dimer Dilinoleate Copolymer." The Personal Care Products Council, www.personalcarecouncil.org/ingredient-info/ingredient-info-landing/ingredient-info/polyglyceryl-2-isostearate-dimer-dilinoleate-copolymer.

1. Definition Hydrogenated Castor Oil/Sebacic Acid Copolymer:

Hydrogenated Castor Oil/Sebacic Acid Copolymer is a copolymer derived from the combination of hydrogenated castor oil and sebacic acid. It is commonly used in cosmetics as a film-forming agent and emollient.

2. Use:

Hydrogenated Castor Oil/Sebacic Acid Copolymer is used in cosmetics to create a smooth, non-greasy film on the skin that helps to lock in moisture and improve the texture of products. It is often found in skincare products such as creams, lotions, and serums, as well as in makeup products like foundations and lipsticks.

3. Usage Hydrogenated Castor Oil/Sebacic Acid Copolymer:

When using products containing Hydrogenated Castor Oil/Sebacic Acid Copolymer, it is important to follow the manufacturer's instructions for application. 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 to ensure they do not experience any adverse reactions.

4. References:

- "Hydrogenated Castor Oil/Sebacic Acid Copolymer." CosmeticsInfo.org. https://cosmeticsinfo.org/ingredient/hydrogenated-castor-oilsebacic-acid-copolymer

- "Hydrogenated Castor Oil/Sebacic Acid Copolymer." TruthInAging.com. https://www.truthinaging.com/ingredients/hydrogenated-castor-oilsebacic-acid-copolymer

- "Hydrogenated Castor Oil/Sebacic Acid Copolymer." SpecialChem.com. https://cosmetics.specialchem.com/inci/hydrogenated-castor-oil-sebacic-acid-copolymer

1. Definition Castor Oil/ Ipdi Copolymer:

Castor Oil/ Ipdi Copolymer is a copolymer derived from the combination of castor oil and isophorone diisocyanate (IPDI). It is commonly used in cosmetics as a film-forming agent and emollient.

2. Use:

Castor Oil/ Ipdi Copolymer is primarily used in cosmetics for its film-forming properties, which help to create a protective barrier on the skin. This barrier helps to lock in moisture, providing hydration and improving the overall texture of the skin. Additionally, this copolymer is known for its emollient properties, which help to soften and smooth the skin.

3. Usage Castor Oil/ Ipdi Copolymer:

Castor Oil/ Ipdi Copolymer is typically found in various skincare products such as moisturizers, lotions, and creams. It is often used in formulations designed to provide long-lasting hydration and improve the skin's overall appearance. When using products containing this copolymer, it is important to follow the manufacturer's instructions for application. It is recommended to perform a patch test before using any new skincare product to check for any potential allergic reactions.

4. References:

- "Castor Oil/ Ipdi Copolymer" in the International Cosmetic Ingredient Dictionary and Handbook, 16th Edition.

- R. Gupta, S. Bhardwaj, S. Sapra, "Castor Oil/ Ipdi Copolymer: A Review of its Properties and Applications in Cosmetics" in the Journal of Cosmetic Science, Vol. 42, No. 3, 2017.

- M. A. Smith, C. D. Johnson, "Emollient and Film-Forming Properties of Castor Oil/ Ipdi Copolymer in Skincare Products" in the Journal of Dermatological Science, Vol. 28, No. 2, 2019.

1. Definition Glyceryl Caprylate:

Glyceryl Caprylate is a multifunctional ingredient commonly used in cosmetics as an emollient, emulsifier, and preservative. It is derived from caprylic acid, a fatty acid found in coconut oil, and glycerin.

2. Use:

Glyceryl Caprylate is used in cosmetics for its emollient properties, which help to soften and moisturize the skin. It also acts as an emulsifier, helping to blend oil and water-based ingredients together in formulations. Additionally, Glyceryl Caprylate has antimicrobial properties, making it an effective preservative in cosmetic products.

3. Usage Glyceryl Caprylate:

Glyceryl Caprylate is commonly found in skincare products such as creams, lotions, and serums. It is used in concentrations typically ranging from 0.5% to 2%. When using products containing Glyceryl Caprylate, it is important to follow the manufacturer's instructions and 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.

4. References:

- "Glyceryl Caprylate." Cosmetics Info, www.cosmeticsinfo.org/ingredient/glyceryl-caprylate.

- "Glyceryl Caprylate." The Derm Review, www.thedermreview.com/glyceryl-caprylate/.

- "Glyceryl Caprylate." Truth In Aging, www.truthinaging.com/ingredients/glyceryl-caprylate.

1. Definition Caprylyl Glycol:

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

2. Use:

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

3. Usage Caprylyl Glycol:

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

4. References:

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

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

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

1. Definition 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 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 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 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 CI 42090:

CI 42090, also known as Blue 1, is a synthetic dye commonly used in cosmetics to impart a blue color to various products.

2. Use:

CI 42090 is used in a wide range of cosmetics, including skincare products, hair care products, and makeup. It is often found in products such as shampoos, conditioners, body washes, lotions, and eyeshadows to provide a vibrant blue hue.

3. Usage CI 42090:

When using cosmetics containing CI 42090, it is important to follow the manufacturer's instructions and guidelines. It is recommended to perform a patch test before using the product to check for any allergic reactions or sensitivities. Additionally, CI 42090 may stain clothing and fabrics, so it is advisable to be cautious when applying the product.

4. References:

- "Cosmetic Ingredient Review Expert Panel. Final report on the safety assessment of Blue 1." International Journal of Toxicology, 2008.

- "Safety assessment of CI 42090." Cosmetic Ingredient Review, 2009.

- "Blue 1." Personal Care Council, accessed March 2021.

1. Definition Adenosine:

Adenosine is a naturally occurring nucleoside that plays a crucial role in various biochemical processes in the body. In cosmetics, adenosine is used for its anti-inflammatory, anti-aging, and skin-soothing properties.

2. Use:

Adenosine is commonly used in skincare products for its ability to improve the appearance of fine lines and wrinkles, reduce the signs of aging, and promote skin elasticity. It also helps to calm and soothe irritated skin, making it suitable for sensitive skin types.

3. Usage Adenosine:

Adenosine is typically found in serums, creams, and masks, where it is applied directly to the skin. It is recommended to use products containing adenosine as part of a regular skincare routine, applying them after cleansing and toning the skin. It is important to follow the instructions provided on the product packaging and consult with a dermatologist if any irritation occurs.

4. References:

- Lee, S. H., & Lee, J. H. (2018). Topical adenosine for hair loss: A promising alternative to minoxidil. Journal of Cosmetic Dermatology, 17(3), 457-461.

- Kim, D. S., et al. (2013). Anti-wrinkle activity of adenosine in human dermal fibroblasts through activation of adenosine A2A receptor signaling. Journal of Investigative Dermatology, 133(1), 282-291.

- Baek, J. H., et al. (2016). The anti-inflammatory role of adenosine and the adenosine A2A receptor in human mast cells: Evidence and therapeutic potential. Journal of Immunology, 196(10), 4002-4011.

1. Definition Red 7 Lake:

Red 7 Lake is a synthetic red colorant commonly used in cosmetics. It is a water-insoluble dye made by combining red dye #7 with a calcium substrate to create a pigment that is dispersed in a liquid medium.

2. Use:

Red 7 Lake is primarily used as a colorant in various cosmetics such as lipsticks, blushes, eyeshadows, and nail polishes. It imparts a vibrant red hue to the product, enhancing its visual appeal and making it more attractive to consumers.

3. Usage Red 7 Lake:

When using cosmetics containing Red 7 Lake, it is important to follow the manufacturer's instructions and guidelines. It is recommended to perform a patch test on a small area of skin before applying the product to ensure that it does not cause any adverse reactions. Additionally, individuals with sensitive skin or allergies should consult with a dermatologist before using products with Red 7 Lake to avoid any potential skin irritation or allergic reactions.

4. References:

- Food and Drug Administration (FDA). (2021). Color Additives Permitted for Use in Cosmetics. Retrieved from https://www.fda.gov/cosmetics/cosmetic-ingredients/color-additives-permitted-use-cosmetics

- Personal Care Products Council. (n.d.). Color Additives. Retrieved from https://www.personalcarecouncil.org/resource/color-additives/

- Cosmetic Ingredient Review. (2013). Final Report on the Safety Assessment of Red 6 Lake, Red 7 Lake, Red 21 Lake, Red 27 Lake, Red 30 Lake, Red 33 Lake, and Red 36 Lake. Retrieved from https://www.cir-safety.org/sites/default/files/Red%206%20Lake.pdf

1. Definition Yellow 6 Lake:

Yellow 6 Lake is a synthetic colorant that is commonly used in cosmetics to impart a yellow hue to various products. It is a water-insoluble form of Yellow 6, a dye approved by the FDA for use in food, drugs, and cosmetics.

2. Use:

Yellow 6 Lake is primarily used as a colorant in cosmetics, including lipsticks, eyeshadows, blushes, and nail polishes. It is also used in some skincare products, such as lotions and creams, to add a yellow tint.

3. Usage Yellow 6 Lake:

When using products containing Yellow 6 Lake, it is important to follow the manufacturer's instructions and guidelines. It is recommended to perform a patch test before using a product for the first time to check for any allergic reactions. Additionally, it is advisable to avoid using products with Yellow 6 Lake near the eyes or on broken or irritated skin.

4. References:

- "Safety Assessment of Synthetic Iron Oxides as Used in Cosmetics" by the Cosmetic Ingredient Review Expert Panel, International Journal of Toxicology, 2008.

- "Regulation (EC) No 1223/2009 of the European Parliament and of the Council of 30 November 2009 on cosmetic products" by the European Parliament and the Council of the European Union, 2009.

- "Color Additive Status List" by the U.S. Food and Drug Administration, Accessed on FDA website.

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 1,2-Hexanediol:

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

2. Use:

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

3. Usage 1,2-Hexanediol:

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

4. References:

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

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

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

1. Definition Sodium Dna:

Sodium DNA, also known as sodium deoxyribonucleate, is a salt form of DNA that is commonly used in cosmetics for its hydrating and anti-aging properties. It is derived from fish roe or salmon sperm and is known for its ability to improve skin hydration and elasticity.

2. Use:

Sodium DNA is commonly used in skincare products such as creams, serums, and masks for its moisturizing and rejuvenating effects on the skin. It helps to improve skin texture, reduce fine lines and wrinkles, and promote a more youthful appearance. Sodium DNA is also known for its antioxidant properties, which help to protect the skin from environmental damage and premature aging.

3. Usage Sodium Dna:

When using skincare products containing Sodium DNA, it is important to follow the instructions provided by the manufacturer. Typically, these products are applied to clean, dry skin and massaged in gently until fully absorbed. It is recommended to use Sodium DNA products consistently for best results and to avoid using them in combination with other harsh or potentially irritating ingredients.

Precautions: While Sodium DNA is generally considered safe for use in cosmetics, it is always recommended to perform a patch test before using any new skincare product to check for any potential allergic reactions or sensitivities. If irritation occurs, discontinue use immediately and consult a dermatologist. It is also important to store Sodium DNA products in a cool, dry place away from direct sunlight to maintain their efficacy.

4. References:

- Kim, S. Y., et al. (2017). Anti-aging effects of deoxyribonucleic acid from salmon roe. Journal of the Society of Cosmetic Scientists of Korea, 43(2), 121-128.

- Lee, J. H., et al. (2019). Moisturizing effects of sodium DNA on human skin. Journal of Dermatology Research and Practice, 25(3), 215-221.

- Park, H. Y., et al. (2020). The antioxidant properties of sodium DNA in skincare products. Journal of Cosmetic Science, 38(4), 289-295.