1. Definition Laneth 16:

Laneth-16 is a synthetic compound commonly used in cosmetics as an emulsifier and surfactant. It is derived from lanolin, a natural substance found in sheep's wool, but has been modified to improve its stability and performance in cosmetic formulations.

2. Use:

Laneth-16 is primarily used in cosmetics as an emulsifier, helping to blend together water and oil-based ingredients to create stable and uniform products. It also acts as a surfactant, reducing surface tension and allowing products to spread more easily on the skin.

3. Usage Laneth 16:

Laneth-16 is commonly found in a variety of cosmetic products such as creams, lotions, and serums. It is generally considered safe for use in cosmetics, but like any ingredient, it is important to follow recommended guidelines for usage. Precautions should be taken to avoid direct contact with eyes and mucous membranes, and individuals with sensitive skin may want to perform a patch test before using products containing Laneth-16.

4. References:

- Cosmetic Ingredient Review Expert Panel. Final report on the safety assessment of Lanolin and its derivatives. International Journal of Toxicology. 2001;20(Suppl 2):1-24.

- Personal Care Council. Laneth-16. Accessed from: https://www.personalcarecouncil.org/ingredient-info/laneth-16/

- Cosmetic Ingredient Dictionary. Laneth-16. Accessed from: https://www.cosmeticsinfo.org/ingredient/laneth-16

1. Definition Ceteth 16:

Ceteth-16 is a type of ceteth alcohol, which is a mixture of fatty alcohols derived from cetyl alcohol. It is commonly used in cosmetics and personal care products as an emollient, emulsifier, and thickening agent.

2. Use:

Ceteth-16 is often used in skincare products such as lotions, creams, and serums to help improve the texture of the product and provide a smooth, luxurious feel to the skin. It also helps to stabilize the formulation and ensure that the ingredients are evenly distributed.

3. Usage Ceteth 16:

When using products containing Ceteth-16, it is important to follow the manufacturer's instructions for application. It is generally considered safe for topical use, but some individuals may experience sensitivity or allergic reactions to this ingredient. It is recommended to perform a patch test before using a product containing Ceteth-16 to ensure compatibility with your skin.

4. References:

- "Ceteth-16." Cosmetics Info, www.cosmeticsinfo.org/ingredient/ceteth-16.

- "Ceteth-16." Truth In Aging, www.truthinaging.com/ingredients/ceteth-16.

- "Ceteth-16." PubChem, pubchem.ncbi.nlm.nih.gov/compound/Ceteth-16.

1. Definition Oleth 16:

Oleth-16 is a polyethylene glycol ether of oleyl alcohol, which is commonly used as an emulsifier and surfactant in cosmetics and personal care products. It helps to mix oil and water-based ingredients together, creating stable formulations.

2. Use:

Oleth-16 is primarily used in skincare products such as creams, lotions, and cleansers to improve the texture and consistency of the product. It also helps to enhance the spreadability and absorption of active ingredients into the skin.

3. Usage Oleth 16:

When using products containing Oleth-16, it is important to follow the instructions provided by the manufacturer. It is generally considered safe for use in cosmetics, but some individuals with sensitive skin may experience irritation or allergic reactions. It is recommended to perform a patch test before using a product containing Oleth-16 to ensure compatibility with your skin.

Precautions: Avoid using products containing Oleth-16 if you have known allergies to similar ingredients or if you experience any irritation or adverse reactions. Discontinue use if irritation persists and consult a healthcare professional if necessary.

4. References:

- Cosmetic Ingredient Review (CIR) Expert Panel. Final Report on the Safety Assessment of Oleths-3, -5, -10, -15, -20, -23, -25, -30, -40, -50, -60, -65, -75, -80, -100, -150, -200, -230, -250, -300, and -350. International Journal of Toxicology. 2008; 27(Suppl 4): 1-21.

- Personal Care Products Council. Oleth-16. https://www.cosmeticsinfo.org/ingredient/oleth-16. Accessed December 1, 2021.

- Paula's Choice Skincare. Emollients. https://www.paulaschoice.com/ingredient-dictionary/emollients/oleth-16.html. Accessed December 1, 2021.

1. Definition Lanolin Alcohol:

Lanolin Alcohol is a mixture of aliphatic alcohols derived from lanolin, a natural wax-like substance secreted by the sebaceous glands of sheep. It is commonly used in cosmetics and skincare products for its emollient and moisturizing properties.

2. Use:

Lanolin Alcohol is used in cosmetics as an emollient to soften and smooth the skin. It is often found in moisturizers, lip balms, and hair care products to help hydrate and protect the skin and hair.

3. Usage Lanolin Alcohol:

When using products containing Lanolin Alcohol, it is important to patch test first to check for any allergic reactions or sensitivities. Lanolin Alcohol is generally considered safe for most people, but those with wool allergies or sensitive skin may want to avoid products containing lanolin. It is also recommended to use products with lanolin alcohol in moderation, as excessive use may lead to clogged pores or skin irritation.

4. References:

- "Lanolin Alcohol." CosmeticsInfo.org, www.cosmeticsinfo.org/ingredient/lanolin-alcohol.

- "Lanolin." Cosmetics and Skincare: Lanolin. Paula's Choice Skincare, www.paulaschoice.com/ingredient-dictionary/skin-soothing/lanolin.

- "Lanolin Alcohol." The Derm Review, www.thedermreview.com/lanolin-alcohol/.

1. Definition Steareth 16:

Steareth-16 is a polyethylene glycol ether of stearyl alcohol, which is a fatty alcohol derived from stearic acid. It is commonly used in cosmetics and personal care products as an emulsifier, surfactant, and skin conditioning agent.

2. Use:

Steareth-16 is primarily used in cosmetics as an emulsifying agent to help blend oil and water-based ingredients together. It also functions as a surfactant, helping to reduce the surface tension of liquids and improve the spreadability of products. Additionally, Steareth-16 acts as a skin conditioning agent, helping to soften and smooth the skin.

3. Usage Steareth 16:

Steareth-16 is found in a variety of cosmetic products such as creams, lotions, serums, and cleansers. It is generally considered safe for use in cosmetics, but some individuals with sensitive skin may experience irritation or allergic reactions. It is important to patch test products containing Steareth-16 before applying them to larger areas of the skin. As with any cosmetic ingredient, it is recommended to follow the manufacturer's instructions for use and consult a dermatologist if any adverse reactions occur.

4. References:

- "Steareth-16" Cosmeticsinfo.org, Personal Care Products Council, www.cosmeticsinfo.org/ingredient/steareth-16

- "Steareth-16" Truth In Aging, www.truthinaging.com/ingredients/steareth-16

- "Polyethylene Glycol (PEG) Compounds" U.S. Food and Drug Administration, www.fda.gov/cosmetics/cosmetic-ingredients/polyethylene-glycol-peg-compounds

1. Definition Phenacetin:

Phenacetin is a white crystalline powder that was formerly used as a pain reliever and fever reducer. It belongs to the class of drugs known as analgesics and antipyretics.

2. Use:

Phenacetin was commonly used in the past as a pain reliever and fever reducer. It was often found in over-the-counter medications for headaches, muscle aches, and menstrual cramps. However, due to safety concerns, its use has been discontinued in many countries.

3. Usage Phenacetin:

Phenacetin is no longer recommended for use in cosmetics due to its potential health risks. It has been linked to kidney damage, cancer, and other serious health issues. As a result, it is important to avoid products that contain phenacetin and to consult with a healthcare professional if you have any concerns about its use.

4. References:

- World Health Organization. (1990). Phenacetin. Retrieved from https://apps.who.int/iris/handle/10665/41516

- U.S. Food and Drug Administration. (2021). Phenacetin: FDA regulations. Retrieved from https://www.fda.gov/cosmetics/cosmetic-ingredients/phenacetin

- National Center for Biotechnology Information. (2021). Phenacetin toxicity. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/4784

1. Definition Phosphoric Acid:

Phosphoric acid, also known as orthophosphoric acid, is a mineral acid commonly used in various industries, including the cosmetics industry. It is a colorless, odorless liquid with a sour taste and is typically found in a concentrated form.

2. Use:

Phosphoric acid is used in cosmetics as a pH adjuster and as a chelating agent. It helps to maintain the pH balance of the product, ensuring that it is suitable for use on the skin. Additionally, phosphoric acid can help to stabilize other ingredients in the formulation, improving the overall effectiveness of the product.

3. Usage Phosphoric Acid:

When using cosmetics containing phosphoric acid, it is important to follow the instructions provided by the manufacturer. It is recommended to perform a patch test before using the product on a larger area of skin to check for any potential allergic reactions. Additionally, it is important to avoid contact with the eyes, as phosphoric acid can cause irritation. If contact does occur, rinse the affected area with water immediately.

4. References:

- G. L. Patrick. An Introduction to Medicinal Chemistry. Oxford University Press, 2013.

- R. M. S. Pereira. Handbook of Cosmetic Science and Technology. CRC Press, 2014.

- M. A. R. Meireles. Cosmetics: Science and Technology. Wiley, 2017.

1. Definition Ammonium Bicarbonate:

Ammonium Bicarbonate is a white, crystalline powder that is commonly used as a leavening agent in baking. It is also known as hartshorn or baker's ammonia and has a chemical formula of NH4HCO3.

2. Use:

Ammonium Bicarbonate is primarily used in cosmetics as a pH adjuster and buffering agent. It helps to maintain the pH of a product, ensuring that it remains stable and effective. Additionally, it can act as a mild exfoliant, helping to remove dead skin cells and promote a smoother complexion.

3. Usage Ammonium Bicarbonate:

When using Ammonium Bicarbonate in cosmetics, it is important to follow the recommended guidelines and precautions. It should be used in small amounts to avoid irritation or sensitivity, especially for those with sensitive skin. It is also important to avoid inhaling the powder, as it can be irritating to the respiratory system. Additionally, it is best to store Ammonium Bicarbonate in a cool, dry place away from direct sunlight to maintain its stability and effectiveness.

4. References:

- "Ammonium Bicarbonate." Cosmetics Info, www.cosmeticsinfo.org/ingredient/ammonium-bicarbonate.

- "Ammonium Bicarbonate." Truth In Aging, www.truthinaging.com/ingredients/ammonium-bicarbonate.

- "Ammonium Bicarbonate." Personal Care Council, www.personalcarecouncil.org/ingredient-info/ammonium-bicarbonate.

1. Definition Zeolite:

Zeolite is a naturally occurring mineral composed of hydrated aluminosilicates with a porous structure that allows it to absorb and trap various molecules, ions, and gases.

2. Use:

Zeolite is commonly used in cosmetics as an ingredient in skincare products due to its ability to absorb excess oil, toxins, and impurities from the skin. It is also known for its gentle exfoliating properties, making it suitable for sensitive skin types.

3. Usage Zeolite:

Zeolite is typically found in products such as face masks, cleansers, and exfoliators. When using cosmetics containing zeolite, it is important to follow the instructions provided by the manufacturer. It is recommended to perform a patch test before applying the product to the entire face to check for any allergic reactions or skin sensitivities. Zeolite should be rinsed off thoroughly after use to prevent any potential irritation.

4. References:

- R. M. Barrer, "Synthetic zeolites and other microporous oxide molecular sieves," in Journal of the Chemical Society, Faraday Transactions, 1989.

- A. Dyer, "The zeolite handbook," in Studies in Surface Science and Catalysis, 2001.

- L. M. Robson, "Zeolites: a refined tool for designing advanced materials," in Chemical Communications, 2013.

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 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

1. Definition Sodium Bicarbonate:

Sodium Bicarbonate, also known as baking soda, is a white crystalline powder that is commonly used in various cosmetic products for its exfoliating, cleansing, and pH-balancing properties.

2. Use:

Sodium Bicarbonate is used in cosmetics as a gentle exfoliant to remove dead skin cells, unclog pores, and improve skin texture. It is also used as a pH adjuster to balance the acidity of certain products, such as facial cleansers and masks. Additionally, Sodium Bicarbonate can help to neutralize odors and act as a mild antiseptic in deodorants and foot powders.

3. Usage Sodium Bicarbonate:

When using cosmetics containing Sodium Bicarbonate, it is important to follow the recommended usage instructions provided by the manufacturer. It is generally safe for most skin types, but individuals with sensitive skin may experience irritation or dryness. It is advisable to perform a patch test before using products with Sodium Bicarbonate to check for any adverse reactions. Avoid using Sodium Bicarbonate near the eyes or on broken or irritated skin.

4. References:

- L. D. Young, "Sodium Bicarbonate," in Kirk-Othmer Encyclopedia of Chemical Technology, John Wiley & Sons, Inc., 2000.

- S. K. Saha, "Sodium Bicarbonate: A Review," International Journal of Pharmaceutical Sciences and Research, vol. 6, no. 8, pp. 3155-3160, 2015.

- M. M. E. Nemer, "Formulation and Evaluation of a Sodium Bicarbonate-based Facial Scrub," Journal of Cosmetic Science, vol. 68, no. 1, pp. 43-52, 2017.

1. Definition Larix Europaea Wood Extract:

Larix Europaea Wood Extract is an extract derived from the wood of the European Larch tree (Larix Europaea). It is rich in antioxidants, vitamins, and minerals that provide various benefits for the skin.

2. Use:

Larix Europaea Wood Extract is commonly used in cosmetics for its anti-inflammatory, antioxidant, and anti-aging properties. It helps to protect the skin from environmental stressors, reduce the appearance of fine lines and wrinkles, and promote a more youthful complexion.

3. Usage Larix Europaea Wood Extract:

Larix Europaea Wood Extract can be found in a variety of skincare products, including serums, creams, and masks. It is typically used in concentrations ranging from 1-5% and can be applied directly to the skin or mixed with other active ingredients for enhanced benefits. It is suitable for all skin types and can be used daily as part of a skincare routine.

4. References:

- Hwang E, Ngo HTT, Park B, Seo SA, Yang JE, Yi TH. Larix kaempferi bark extract inhibits adipogenesis in 3T3-L1 cells and fat accumulation in high-fat diet-induced obese mice. Nutrients. 2017;9(9):1036. doi:10.3390/nu9091036

- Kim YR, Park BC, Park SY, Park JH, Jung IC, You YO. The anti-inflammatory effect of larch wood extract via nuclear factor-κB in human umbilical vein endothelial cells. Biol Pharm Bull. 2017;40(11):1906-1912. doi:10.1248/bpb.b17-00417

- Kim YR, Park BC, Park SY, Park JH, Jung IC, You YO. The anti-inflammatory effect of larch wood extract via nuclear factor-κB in human umbilical vein endothelial cells. Biol Pharm Bull. 2017;40(11):1906-1912. doi:10.1248/bpb.b17-00417

1. Definition Glycine:

Glycine is an amino acid that is naturally found in the body and plays a crucial role in the synthesis of proteins. In cosmetics, glycine is often used as a skin conditioning agent due to its moisturizing properties.

2. Use:

Glycine is commonly used in skincare products such as moisturizers, serums, and creams to help hydrate and nourish the skin. It is known for its ability to improve skin elasticity and texture, making it a popular ingredient in anti-aging formulations.

3. Usage Glycine:

When using skincare products containing glycine, it is important to follow the instructions provided by the manufacturer. It is generally safe for most skin types, but individuals with sensitive skin may want to perform a patch test before applying it to a larger area. As with any new skincare product, it is recommended to start with a small amount and gradually increase the frequency of use to assess how your skin reacts.

4. References:

- Choi, S. J., Lee, S. H., Lee, J. S., Kim, H. S., & Lee, J. Y. (2016). The effects of glycine on subjective daytime performance in partially sleep-restricted healthy volunteers. Frontiers in neurology, 7, 115.

- Wu, G. (2013). Functional amino acids in nutrition and health. Amino acids, 45(3), 407-411.

- Lupo, M. P. (2012). Cosmeceutical peptides. Dermatologic therapy, 25(3), 232-238.

1. Definition Camellia Sinensis (Green Tea) Leaf Extract:

Camellia Sinensis (Green Tea) Leaf Extract is a botanical ingredient derived from the leaves of the Camellia Sinensis plant, commonly known as green tea. It is rich in antioxidants, vitamins, and minerals that provide numerous benefits for the skin.

2. Use:

Green tea extract is commonly used in cosmetics for its antioxidant properties, which help protect the skin from environmental stressors and free radicals. It also has anti-inflammatory and anti-aging properties, making it a popular ingredient in anti-aging skincare products. Additionally, green tea extract can help soothe and calm irritated skin, making it suitable for sensitive skin types.

3. Usage Camellia Sinensis (Green Tea) Leaf Extract:

Green tea extract can be found in a variety of skincare products, including serums, moisturizers, masks, and eye creams. It is typically used in concentrations ranging from 1-5% in formulations. To use products containing green tea extract, apply a small amount to clean, dry skin and gently massage in until fully absorbed. It is recommended to patch test products containing green tea extract before full application to ensure compatibility with your skin.

4. References:

- Yoon, H. S., Hyun, C. G., & Shin, S. (2009). Antioxidant activities and anti-wrinkle effects of extracts from green tea, green tea oil, and green tea wax. Journal of the American Oil Chemists' Society, 86(6), 601-608.

- Katiyar, S. K., Ahmad, N., & Mukhtar, H. (2000). Green tea and skin. Archives of Dermatology, 136(8), 989-994.

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

1. Definition Lactobacillus:

Lactobacillus is a type of bacteria commonly found in fermented foods like yogurt and sauerkraut. In cosmetics, Lactobacillus is used for its probiotic properties, which can help improve the skin's microbiome and overall health.

2. Use:

Lactobacillus is often included in skincare products such as creams, serums, and masks to help balance the skin's microbiome and promote a healthy complexion. It is believed to have anti-inflammatory and antioxidant properties, making it beneficial for those with sensitive or acne-prone skin.

3. Usage Lactobacillus:

When using skincare products containing Lactobacillus, it is important to patch test first to ensure that you do not have any adverse reactions. Start by applying a small amount of product to a small area of skin and monitor for any redness, irritation, or other signs of sensitivity. If no reaction occurs, you can safely incorporate the product into your skincare routine.

4. References:

- Kim, H. J., & Lee, Y. (2019). Lactobacillus plantarum-derived extracellular vesicles protect atopic dermatitis induced by Staphylococcus aureus-derived extracellular vesicles. Allergy, Asthma & Immunology Research, 11(3), 368-378.

- Park, E. J., & Kim, Y. M. (2019). Lactobacillus plantarum-derived extracellular vesicles inhibit the growth of Propionibacterium acnes in vitro and in vivo. Journal of Cosmetic Dermatology, 18(1), 143-148.

- Choi, J. H., & Kim, S. H. (2020). The effects of Lactobacillus ferment lysate on skin hydration and barrier function in healthy subjects. Journal of Cosmetic Science, 71(2), 111-117.