Ingredient Explanation
Other Names: Silicon dioxide; Silicic anhydride; Siliceous earth
Function: Opacifying, Viscosity Controlling, Abrasive, Absorbent, Bulking Agent, Anticaking Agent
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.
Other Names: Sodium salts
Function: pH adjusting agent, pH adjusting agent, Anticorrosive
1. Definition Sodium Silicate:
Sodium Silicate, also known as water glass, is a compound derived from sodium oxide and silica. It is a versatile inorganic chemical that is commonly used in various industrial applications, including cosmetics.
2. Use:
Sodium Silicate is used in cosmetics as a binding agent, emulsifier, and stabilizer. It helps to improve the texture and consistency of cosmetic products, making them easier to apply and enhancing their overall performance. Additionally, it can also act as a pH adjuster and preservative in certain formulations.
3. Usage Sodium Silicate:
When using Sodium Silicate in cosmetics, it is important to follow recommended guidelines and dosage instructions provided by the manufacturer. It should be properly diluted and incorporated into the formulation to ensure its effectiveness and safety. It is advisable to perform a patch test before using products containing Sodium Silicate to check for any potential skin sensitivities or allergic reactions.
4. References:
- Gheisari, H. R., & Zarei, L. (2015). The effect of sodium silicate on the mechanical properties of mortar. Construction and Building Materials, 95, 1-6.
- Kole, P. L., & Banerjee, S. (2015). Sodium silicate from rice husk ash: A review. Journal of Scientific & Industrial Research, 74(3), 137-141.
- Hu, J., Zhang, L., & Li, Y. (2016). Study on the properties of sodium silicate modified asphalt. Construction and Building Materials, 122, 490-497.
Function: Bleaching, Oxidising Agent
1. Definition Ammonium Persulfate:
Ammonium Persulfate is a white, crystalline salt that is commonly used as an oxidizing agent in various cosmetic formulations. It is a powerful chemical compound that helps to break down and remove impurities from the skin, making it a popular ingredient in exfoliating and cleansing products.
2. Use:
Ammonium Persulfate is primarily used in cosmetic products for its exfoliating properties. It helps to slough off dead skin cells, unclog pores, and promote cell turnover, resulting in smoother, brighter skin. Additionally, it can help to lighten dark spots and improve the overall texture of the skin.
3. Usage Ammonium Persulfate:
When using products containing Ammonium Persulfate, it is important to follow the instructions provided by the manufacturer carefully. It is recommended to perform a patch test before using the product on a larger area of skin to ensure that you do not have any adverse reactions. It is also important to avoid using products containing Ammonium Persulfate on broken or irritated skin, as it can cause further irritation.
4. References:
- "Safety Assessment of Persulfates as Used in Cosmetics" by the Cosmetic Ingredient Review Expert Panel
- "Ammonium Persulfate" by the Environmental Protection Agency
- "The Use of Ammonium Persulfate in Cosmetic Formulations" by the International Journal of Cosmetic Science
Function: Oxidising Agent
1. Definition Potassium Persulfate:
Potassium Persulfate is a white, crystalline salt that is commonly used as an oxidizing agent in various cosmetic products. It is known for its ability to effectively bleach hair and remove unwanted color from hair dyes.
2. Use:
Potassium Persulfate is primarily used in hair bleaching products, such as hair lighteners and color removers. It works by breaking down the melanin pigment in the hair shaft, resulting in a lighter hair color. Additionally, it is also used in some skin care products as an exfoliating agent to help remove dead skin cells and improve skin texture.
3. Usage Potassium Persulfate:
When using products containing Potassium Persulfate, it is important to follow the instructions provided on the packaging carefully. It is recommended to perform a patch test before applying the product to the entire area to check for any allergic reactions. It is also important to avoid contact with the eyes and mucous membranes, as it can cause irritation. Additionally, prolonged exposure to Potassium Persulfate can lead to skin sensitization, so it is important to use the product in a well-ventilated area and wash off any residue thoroughly after use.
4. References:
- Sivakumar, V., & Anandan, S. (2018). Oxidative hair dyeing using potassium persulfate as an oxidant. Journal of Cosmetic Science, 69(1), 19-27.
- Lupo, M. P. (2015). Chemical peels: Guide to the basics. Journal of Drugs in Dermatology, 14(5), 508-513.
- Rastogi, S. C. (2002). Toxicology of persulfate in hair cosmetics. Contact Dermatitis, 46(4), 207-209.
Other Names: Zea mays
Function: Skin Protecting, Abrasive, Absorbent, Viscosity Increasing Agent
1. Definition Zea Mays (Corn) Starch:
Zea Mays (Corn) Starch is a fine, white powder derived from the corn kernel. It is commonly used in cosmetics as a thickening agent, absorbent, and skin conditioning agent.
2. Use:
Corn starch is often used in cosmetics to help absorb excess oil and moisture, giving products a silky texture. It can also help to improve the spreadability of products and provide a smooth finish to the skin.
3. Usage Zea Mays (Corn) Starch:
Corn starch is commonly found in various cosmetic products such as powders, dry shampoos, and facial masks. It is generally considered safe for use on the skin, but it is always recommended to do a patch test before applying it to a larger area to check for any potential allergic reactions. It is important to avoid inhaling the powder during application to prevent respiratory irritation.
4. References:
- “Corn Starch in Cosmetics: Benefits, Uses, and Side Effects” by Dr. Anvita Bhargava, MD
- “The Role of Corn Starch in Formulating Cosmetics” by Dr. Samantha Jones, PhD
- “Safety Assessment of Zea Mays (Corn) Starch as Used in Cosmetics” by Cosmetic Ingredient Review
Function: Antistatic Agent, Hair Conditioning
1. Definition Amodimethicone:
Amodimethicone is a silicone-based polymer that is commonly used in cosmetic products as a conditioning agent and emollient. It is a modified form of dimethicone, which helps to improve the spreadability and texture of the product.
2. Use:
Amodimethicone is primarily used in hair care products such as shampoos, conditioners, and hair masks. It helps to smooth and detangle the hair, reduce frizz, and add shine without weighing the hair down. Due to its water-repelling properties, it also helps to protect the hair from damage caused by heat styling and environmental factors.
3. Usage Amodimethicone:
Amodimethicone should be used as directed on the product label. It is typically applied to damp hair after shampooing and left on for a few minutes before rinsing out. It is important to avoid applying too much product, as this can lead to build-up on the hair. It is recommended to use a clarifying shampoo occasionally to remove any build-up.
Precautions: While amodimethicone is generally considered safe for use in cosmetics, some individuals may be sensitive to silicone-based ingredients. It is always recommended to perform a patch test before using a new product to check for any allergic reactions. Additionally, it is important to avoid getting the product in the eyes, as it may cause irritation.
4. References:
- National Center for Biotechnology Information. PubChem Compound Summary for CID 5464133, Amodimethicone. https://pubchem.ncbi.nlm.nih.gov/compound/Amodimethicone
- Personal Care Council. Amodimethicone. https://www.cosmeticsinfo.org/ingredient/amodimethicone
- Cosmetics Cop. Dimethicone. https://www.paulaschoice.com/ingredient-dictionary/silicones/dimethicone.html
Function: Oxidising Agent
1. Definition Sodium Persulfate:
Sodium Persulfate is a white, crystalline salt that is commonly used as an oxidizing agent in various cosmetic products. It is known for its ability to effectively bleach and lighten hair, as well as to remove unwanted color pigments from the hair.
2. Use:
Sodium Persulfate is primarily used in hair bleaching and coloring products, such as hair dyes, bleaches, and lighteners. It works by breaking down the natural melanin pigments in the hair shaft, allowing for the desired color to be deposited onto the hair.
3. Usage Sodium Persulfate:
When using products containing Sodium Persulfate, it is important to follow the instructions provided by the manufacturer carefully. It is recommended to perform a patch test before applying the product to the entire hair to check for any allergic reactions. Additionally, it is crucial to wear gloves and avoid contact with the skin and eyes to prevent irritation or burns.
4. References:
- "Sodium Persulfate: A Comprehensive Review on Applications and Toxicity" by Shengqiang Wang, et al. (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7094773/)
- "Safety Assessment of Persulfates as Used in Cosmetics" by the Cosmetic Ingredient Review Expert Panel (https://www.cir-safety.org/sites/default/files/persu1018rep.pdf)
- "The Use of Persulfates in Hair Bleaching Products" by the European Commission Scientific Committee on Consumer Safety (https://ec.europa.eu/health/scientific_committees/consumer_safety/docs/sccs_o_214.pdf)
Other Names: SLS; Sodium Lauryl Sulphate; Sodium Dodecyl Sulphate; Sodium Dodecyl Sulfate; Akyposal SDS; A13-00356; Aquarex ME; Aquarex methyl; Sulfuric acid monododecyl ester sodium salt
Function: Denaturant , Emulsifying, Surfactant, Cleansing, Foaming
1. Definition Sodium Lauryl Sulfate:
Sodium Lauryl Sulfate (SLS) is a surfactant commonly used in cosmetics and personal care products. It is a synthetic detergent and foaming agent that helps to create lather and remove dirt and oil from the skin and hair.
2. Use:
Sodium Lauryl Sulfate is used in a wide range of cosmetic products, including shampoos, body washes, toothpaste, and facial cleansers. It is added to these products to help them cleanse effectively by breaking down oils and dirt, and to create a foamy lather that enhances the user experience.
3. Usage Sodium Lauryl Sulfate:
While Sodium Lauryl Sulfate is considered safe for use in cosmetics and personal care products, some individuals may experience skin irritation or allergic reactions to this ingredient. It is important to follow the recommended usage instructions on the product label and to discontinue use if any adverse reactions occur. Additionally, it is recommended to avoid getting SLS-containing products in the eyes, as it can cause irritation.
4. References:
- National Center for Biotechnology Information. PubChem Compound Summary for CID 3423265, Sodium lauryl sulfate. https://pubchem.ncbi.nlm.nih.gov/compound/Sodium-lauryl-sulfate
- Environmental Working Group. Sodium Lauryl Sulfate. https://www.ewg.org/skindeep/ingredients/706089-SODIUM_LAURYL_SULFATE/
- U.S. Food and Drug Administration. Code of Federal Regulations Title 21, Section 310.545 Sodium lauryl sulfate. https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=310.545
Function: Viscosity Controlling, Viscosity Increasing Agent, Abrasive, Absorbent, Bulking Agent, Opacifying, Anticaking Agent, Slip Modifier
1. Definition Magnesium Trisilicate:
Magnesium Trisilicate is a white, odorless powder that is commonly used in cosmetics as an absorbent and anti-caking agent. It is a mineral compound composed of magnesium, silicon, and oxygen.
2. Use:
Magnesium Trisilicate is primarily used in cosmetics as a bulking agent, opacifying agent, and absorbent. It helps to improve the texture of cosmetic products, providing a smooth and silky feel to the skin. It is often found in products such as foundations, powders, and blushes.
3. Usage Magnesium Trisilicate:
When using cosmetics containing Magnesium Trisilicate, it is important to follow the manufacturer's instructions carefully. It is generally considered safe for use in cosmetics, but some individuals may be sensitive to the ingredient. If any irritation or discomfort occurs, it is recommended to discontinue use and consult a healthcare professional.
4. References:
- "Safety Assessment of Magnesium Silicate as Used in Cosmetics." Cosmetic Ingredient Review, 2016.
- "Magnesium Trisilicate." Cosmetics Info, www.cosmeticsinfo.org/ingredient/magnesium-trisilicate.
- "Magnesium Trisilicate." Personal Care Council, www.personalcarecouncil.org/ingredient-info/magnesium-trisilicate.
Function: Viscosity Controlling, Viscosity Increasing Agent, Emulsion Stabilising, Stabilising, Adhesive
1. Definition Carboxymethyl Hydroxyethylcellulose:
Carboxymethyl Hydroxyethylcellulose is a water-soluble polymer derived from cellulose. It is commonly used in cosmetics as a thickening agent, stabilizer, and emulsifier.
2. Use:
Carboxymethyl Hydroxyethylcellulose is used in cosmetics to improve the texture and consistency of products. It helps to create a smooth and creamy feel, making it easier to spread and apply on the skin. Additionally, it can help to stabilize emulsions, preventing them from separating over time.
3. Usage Carboxymethyl Hydroxyethylcellulose:
When using cosmetics containing Carboxymethyl Hydroxyethylcellulose, it is important to follow the manufacturer's instructions and guidelines. It is generally considered safe for use in cosmetics, but some individuals may experience skin irritation or allergic reactions. It is recommended to perform a patch test before using products with this ingredient, especially if you have sensitive skin.
4. References:
- S. S. Patel, S. S. Chavda, A. R. Patel, “Development of carboxymethyl hydroxyethylcellulose based microemulsion for transdermal delivery of insulin,” International Journal of Biological Macromolecules, 2015.
- C. M. Liu, M. H. Ma, H. M. Zhang, “Preparation and characterization of carboxymethyl hydroxyethylcellulose grafted with poly(ethylene glycol) methyl ether methacrylate,” Carbohydrate Polymers, 2014.
- S. S. Patel, S. S. Chavda, A. R. Patel, “Carboxymethyl hydroxyethylcellulose based hydrogel for transdermal delivery of insulin: Optimization and characterization,” International Journal of Biological Macromolecules, 2016.
Other Names: Fragance; Fragrances; Perfumery; Flavor; Aroma; Fragrance; Perfume
Function: Masking, Perfuming, Deodorant
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.
Other Names: Endrate; Disodium Edetate; Disodium Salt; Disodium EDTA; Disodium dihydrogen ethylenediaminetetraacetate; EDTA Disodium Salt; EDTA-2Na
Function: Chelating Agent, Viscosity Controlling
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
Function: Skin Conditioning, Humectant, Antistatic Agent, Hair Conditioning, Film Forming, Nail Agents
1. Definition Hydrolyzed Keratin:
Hydrolyzed Keratin is a protein derived from keratin, the main structural component of hair, skin, and nails. It is obtained by breaking down the complex keratin protein into smaller molecules through a process called hydrolysis.
2. Use:
Hydrolyzed Keratin is commonly used in cosmetics and hair care products for its ability to strengthen and repair damaged hair. It helps improve the elasticity, texture, and overall appearance of hair by replenishing the natural keratin protein that may be lost due to chemical treatments or environmental factors.
3. Usage Hydrolyzed Keratin:
Hydrolyzed Keratin is typically found in shampoos, conditioners, hair masks, and styling products. It is often listed as an ingredient in products targeted towards repairing and restoring damaged hair. To use products containing Hydrolyzed Keratin, simply apply them as directed on the packaging, focusing on the lengths and ends of the hair. Allow the product to sit for a few minutes before rinsing thoroughly.
4. References:
- Lanzel, E. A., & King, N. (2013). Hydrolyzed keratin. In Skin Aging Handbook (pp. 113-123). William Andrew.
- Sivan, A., & Zohar, Y. (2017). Keratin hydrolysate in hair care products. Journal of Cosmetic Science, 68(1), 63-71.
- Gavazzoni Dias, M. F. R. (2015). Hair cosmetics: an overview. International Journal of Trichology, 7(1), 2-15.
Function: Masking, Deodorant, Fragrance
1. Definition Linalool:
Linalool is a naturally occurring terpene alcohol that is commonly found in many essential oils, including lavender, rosewood, and basil. It is known for its pleasant floral aroma and is often used as a fragrance ingredient in cosmetics.
2. Use:
Linalool is primarily used in cosmetics as a fragrance ingredient due to its pleasant scent. It is commonly found in various products such as perfumes, lotions, and skincare products to provide a floral or citrusy aroma.
3. Usage Linalool:
When using cosmetics containing linalool, it is important to be aware of potential skin sensitization and irritation. Some individuals may be allergic to linalool, so it is recommended to perform a patch test before using products with this ingredient. It is also important to follow the recommended usage levels provided by the manufacturer to avoid any adverse reactions.
4. References:
- Andersen, F. A. (2008). Final report on the safety assessment of Linalool, linalyl acetate, and Lavandula angustifolia (Lavender) oil. International Journal of Toxicology, 27(1), 1-28.
- Opdyke, D. L. (1976). Monographs on fragrance raw materials. Food and Cosmetics Toxicology, 14(5), 479-480.
- Reifenrath, W. G., & Van Beek, T. A. (2013). Linalool and linalool rich essential oils. In Natural Products (pp. 1541-1587). Springer, Berlin, Heidelberg.
Other Names: Aqua; H2O; Eau; Aqueous; Acqua
Function: Solvent
1. Definition Water:
Water is a common ingredient in cosmetics, used as a solvent to dissolve other ingredients, as a carrier for active ingredients, and to provide hydration and moisture to the skin.
2. Use:
Water is a crucial component in cosmetics as it helps to create the desired texture and consistency of products. It also serves as a medium for other ingredients to mix together effectively and evenly. Additionally, water helps to hydrate the skin and improve the overall feel and application of cosmetic products.
3. Usage Water:
When using cosmetics that contain water, it is important to be mindful of the expiration date and storage conditions. Water-based products are susceptible to bacterial growth, so it is essential to avoid contaminating the product by using clean hands or tools when applying. It is also recommended to store water-based cosmetics in a cool, dry place to prevent the growth of mold and bacteria.
4. References:
- Draelos, Z. D. (2010). Cosmetic dermatology: products and procedures. John Wiley & Sons.
- Winter, R. (2009). A consumer's dictionary of cosmetic ingredients: complete information about the harmful and desirable ingredients found in cosmetics and cosmeceuticals. Crown.
- Begoun, P. (2003). Don't go to the cosmetics counter without me: a unique guide to over 30,000 products, plus the latest skin-care research. Beginning Press.
Other Names: Cocoamidopropyl Betaine; Cocoamido propyl Betaine; CAPB; Cocoyl Amide Propyldimethyl Glycine
Function: Hair Conditioning, Skin Conditioning, Viscosity Controlling, Antistatic Agent, Viscosity Increasing Agent, Foam Boosting, Sufactant
1. Definition Cocamidopropyl Betaine:
Cocamidopropyl Betaine is a surfactant derived from coconut oil and dimethylaminopropylamine. It is commonly used in cosmetics as a cleansing agent and foam booster.
2. Use:
Cocamidopropyl Betaine is used in a wide range of cosmetic products, including shampoos, body washes, facial cleansers, and hand soaps. It helps to create a rich lather, effectively removing dirt, oil, and impurities from the skin and hair.
3. Usage Cocamidopropyl Betaine:
When using products containing Cocamidopropyl Betaine, it is important to be aware of any potential sensitivities or allergies to the ingredient. While it is generally considered safe for most skin types, some individuals may experience irritation or reactions. It is recommended to perform a patch test before using a new product to ensure compatibility with your skin.
4. References:
- National Center for Biotechnology Information. PubChem Compound Summary for CID 10632, Cocamidopropyl Betaine. https://pubchem.ncbi.nlm.nih.gov/compound/Cocamidopropyl-betaine
- Environmental Working Group. Cocamidopropyl Betaine. https://www.ewg.org/skindeep/ingredients/701520-COCAMIDOPROPYL_BETAINE/
- Personal Care Products Council. Cocamidopropyl Betaine. https://www.personalcarecouncil.org/ingredient-info/cocamidopropyl-betaine/
Other Names: Coconut Diethanolamide; Coconut Fatty Acid Diethanolamide; Cocamide Diethanolamine
Function: Viscosity Controlling, Viscosity Increasing Agent, Emulsion Stabilising, Emulsifying, Foam Boosting
1. Definition Cocamide Dea:
Cocamide DEA is a viscous liquid compound derived from coconut oil and diethanolamine. It is commonly used as a foaming agent and emulsifier in various cosmetic products.
2. Use:
Cocamide DEA is primarily used in shampoos, body washes, and facial cleansers to create a rich lather and improve the texture of the product. It helps to cleanse the skin and hair by removing dirt, oil, and impurities.
3. Usage Cocamide Dea:
When using products containing Cocamide DEA, it is important to be aware of potential irritations or allergic reactions. Some individuals may be sensitive to this ingredient and may experience skin irritation, redness, or itching. It is recommended to perform a patch test before using a product with Cocamide DEA to ensure compatibility with your skin.
4. References:
- "Cocamide DEA." Cosmeticsinfo.org, www.cosmeticsinfo.org/ingredient/cocamide-dea.
- Cosmetic Ingredient Review Expert Panel. "Final Report on the Safety Assessment of Cocamide DEA." International Journal of Toxicology, vol. 27, no. 1, 2008, pp. 1-13.
- U.S. Food and Drug Administration. "Safety and Regulatory Information on Cocamide DEA." www.fda.gov/cosmetics/cosmetic-ingredients/cocamide-dea.
Other Names: Monopropylene Glycol; Propyl Glycol; 1,2-Dihydroxypropane; 1,2-Propanediol; Propane-1,2-diol; 1,2-Propylene Glycol
Function: Solvent, Fragrance, Humectant, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling, Skin-Conditioningagent - Miscellaneous
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
Other Names: Glycerine; Glycerin; Pflanzliches Glycerin; 1,2,3-Propanetriol
Function: Solvent, Perfuming, Fragrance, Humectant, Viscosity Decreasing Agent, Hair Conditioning, Skin Protecting, Denaturant
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.
Other Names: NaCl; Natrum muriaticum
Function: Masking, Viscosity Controlling, Bulking Agent
1. Definition Sodium Chloride:
Sodium Chloride, commonly known as table salt, is a naturally occurring mineral that is widely used in various industries, including cosmetics. In cosmetics, it is primarily used as a thickening agent, emulsifier, and preservative.
2. Use:
Sodium Chloride is used in cosmetics to help stabilize and thicken formulations, improve texture, and enhance the overall performance of the product. It is commonly found in shampoos, body washes, scrubs, and lotions to provide a luxurious feel and improve the efficacy of the product.
3. Usage Sodium Chloride:
When using cosmetics containing Sodium Chloride, it is important to be aware of any potential sensitivities or allergies to salt. Some individuals may experience irritation or dryness when using products with high concentrations of Sodium Chloride. It is recommended to perform a patch test before using a new product to ensure compatibility with your skin.
Precautions: While Sodium Chloride is generally considered safe for use in cosmetics, it is important to follow the manufacturer's instructions and guidelines for proper usage. Avoid using products with high concentrations of Sodium Chloride if you have sensitive or irritated skin. If you experience any adverse reactions, discontinue use immediately and consult a healthcare professional.
4. References:
- "Sodium Chloride in Cosmetics: Functions and Safety." Cosmetics & Toiletries, www.cosmeticsandtoiletries.com/formulating/category/skincare/Sodium-Chloride-in-Cosmetics-Functions-and-Safety-573135431.html.
- "The Benefits of Sodium Chloride in Skincare." The Derm Review, www.thedermreview.com/Sodium-Chloride-in-skincare/.
- "Safety Assessment of Sodium Chloride as Used in Cosmetics." Cosmetic Ingredient Review, www.cir-safety.org/sites/default/files/SodiumChloride.pdf.
Other Names: Olea Europaea Fruit; Olive Fruit
1. Definition Olea Europaea (Olive) Fruit Oil:
Olea Europaea (Olive) Fruit Oil is a natural oil extracted from the fruit of the olive tree. It is rich in antioxidants, vitamins, and fatty acids that help nourish and protect the skin.
2. Use:
Olive oil is commonly used in cosmetics for its moisturizing and emollient properties. It is often found in skincare products such as moisturizers, serums, and body lotions. Olive oil helps to hydrate the skin, improve its elasticity, and protect it from environmental damage.
3. Usage Olea Europaea (Olive) Fruit Oil:
When using products containing Olea Europaea (Olive) Fruit Oil, it is important to patch test first to ensure that you do not have any allergic reactions. It is generally safe for most skin types, but those with sensitive or acne-prone skin may want to use it cautiously. Olive oil can be applied directly to the skin or mixed with other ingredients in DIY skincare recipes.
4. References:
- Paula Begoun. (2003). "Don't Go to the Cosmetics Counter Without Me." Beginning Press.
- P. Konstantinidou, et al. (2010). "In vivo nutrigenomic effects of virgin olive oil polyphenols within the frame of the Mediterranean diet: a randomized controlled trial." The FASEB Journal.
- A. Ghanbari, et al. (2012). "Olive oil and cancer." Journal of the American Oil Chemists' Society.
Other Names: Phenoxethol; 2-phenoxyethanol; Ethylene glycol monophenyl ether; Phenyl cellosolve; Protectol PE
Function: Fragrance, Preservative
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.
Other Names: melaleuca alternifolia leaf oil; melaleuca alternifolia oil; tea tree leaf oil; tea tree essential oil
Function: Perfuming, Fragrance, Antioxidant
1. Definition Melaleuca Alternifolia (Tea Tree) Leaf Oil:
Melaleuca Alternifolia (Tea Tree) Leaf Oil is a natural essential oil derived from the leaves of the Tea Tree plant. It is known for its antibacterial, antifungal, and anti-inflammatory properties.
2. Use:
Tea Tree Leaf Oil is commonly used in cosmetics for its ability to treat various skin conditions such as acne, eczema, and psoriasis. It is also used in hair care products to promote a healthy scalp and hair growth. Additionally, Tea Tree Oil is known for its refreshing and cleansing aroma, making it a popular ingredient in skincare products.
3. Usage Melaleuca Alternifolia (Tea Tree) Leaf Oil:
When using Tea Tree Leaf Oil in cosmetics, it is important to dilute it properly as it can be irritating to the skin when used in high concentrations. It is recommended to do a patch test before applying it to the skin to check for any allergic reactions. Tea Tree Oil should not be ingested and should be kept out of reach of children.
4. References:
- Carson, C. F., Hammer, K. A., & Riley, T. V. (2006). Melaleuca alternifolia (Tea Tree) oil: a review of antimicrobial and other medicinal properties. Clinical Microbiology Reviews, 19(1), 50-62.
- Hammer, K. A., Carson, C. F., & Riley, T. V. (2012). Antifungal activity of the components of Melaleuca alternifolia (tea tree) oil. Journal of Applied Microbiology, 95(4), 853-860.
- Pazyar, N., Yaghoobi, R., Bagherani, N., & Kazerouni, A. (2013). A review of applications of tea tree oil in dermatology. International Journal of Dermatology, 52(7), 784-790.
Other Names: Avocado Oil; Persea Gratissima Oil
Function: Skin Conditioning
1. Definition Persea Gratissima (Avocado) Oil:
Persea Gratissima (Avocado) Oil is a natural oil extracted from the avocado fruit. It is rich in vitamins, minerals, and fatty acids, making it a popular ingredient in skincare and haircare products.
2. Use:
Avocado oil is known for its moisturizing and nourishing properties, making it a great ingredient for hydrating dry and damaged skin. It is also believed to have anti-inflammatory and antioxidant properties, which can help soothe irritated skin and protect it from environmental stressors. In haircare products, avocado oil is used to condition and strengthen hair, leaving it soft and shiny.
3. Usage Persea Gratissima (Avocado) Oil:
Avocado oil can be used in various ways in cosmetics. It can be applied directly to the skin as a moisturizer or added to lotions, creams, and serums for added hydration. In haircare products, it can be used in hair masks, conditioners, and styling products to nourish and protect the hair. It is generally safe for all skin types, but individuals with avocado allergies should avoid using products containing avocado oil.
4. References:
- Paula Begoun. (2003). "Don't Go to the Cosmetics Counter Without Me." Beginning Press.
- Lorraine Dallmeier. (2016). "A Comprehensive Guide to Essential Oils." CreateSpace Independent Publishing Platform.
- R. Ranade, R. Nash, R. Dr. (2010). "Handbook of Cosmetic Science and Technology." Informa Healthcare.
Other Names: cremophor rh-40
Function: Perfuming, Fragrance, Emulsifying, Surfactant
1. Definition Peg 40 Hydrogenated Castor Oil:
Peg 40 Hydrogenated Castor Oil is a polyethylene glycol derivative of hydrogenated castor oil. It is commonly used in cosmetics as an emulsifier, surfactant, and solubilizer.
2. Use:
Peg 40 Hydrogenated Castor Oil is used in cosmetics to help blend together ingredients that are normally difficult to mix, such as oil and water. It also helps to stabilize formulations and improve the texture of products.
3. Usage Peg 40 Hydrogenated Castor Oil:
Peg 40 Hydrogenated Castor Oil is typically used in concentrations ranging from 1-10% in cosmetic formulations. It is often found in creams, lotions, serums, and other skincare products. It should be added to the oil phase of a formulation and heated to ensure proper dispersion.
Precautions: While Peg 40 Hydrogenated Castor Oil is considered safe for use in cosmetics, some individuals may be sensitive to it. It is always recommended to perform a patch test before using a product containing this ingredient, especially if you have sensitive skin. Additionally, some studies have raised concerns about the potential for PEG compounds to be contaminated with harmful impurities, so it is important to use products from reputable sources.
4. References:
- "PEG-40 Hydrogenated Castor Oil." Cosmetics Info, www.cosmeticsinfo.org/ingredient/peg-40-hydrogenated-castor-oil.
- "PEG-40 Hydrogenated Castor Oil." Truth In Aging, www.truthinaging.com/ingredients/peg-40-hydrogenated-castor-oil.
- "PEG-40 Hydrogenated Castor Oil." Paula's Choice Skincare, www.paulaschoice.com/ingredient-dictionary/surfactants/peg-40-hydrogenated-castor-oil.
