Neutrogena Ultra Gentle Tónico

1. Definition Oleth 30:

Oleth 30 is a polyethylene glycol ether of oleyl alcohol, which is commonly used as an emulsifier in cosmetics and personal care products. It helps to blend together ingredients that are normally immiscible, such as oil and water, creating stable emulsions.

2. Use:

Oleth 30 is primarily used as an emulsifier in various cosmetic formulations, including lotions, creams, and hair care products. It helps to improve the texture and consistency of these products, ensuring that the ingredients are evenly distributed and easily absorbed into the skin or hair.

3. Usage Oleth 30:

When using Oleth 30 in cosmetics, it is important to follow the recommended guidelines provided by the manufacturer. Typically, Oleth 30 is added to the oil phase of a formulation and heated to around 70-80°C to ensure complete dispersion. It should be slowly added to the water phase with constant stirring to create a stable emulsion. It is important to avoid overheating Oleth 30, as this can lead to degradation and loss of effectiveness.

Precautions: While Oleth 30 is considered safe for use in cosmetics, some individuals may experience sensitivity or allergic reactions to this ingredient. It is recommended to perform a patch test before using products containing Oleth 30, especially if you have sensitive skin. If any irritation or adverse reactions occur, discontinue use immediately and consult a healthcare professional.

4. References:

- "Oleth-30" in Cosmeticsinfo.org, https://cosmeticsinfo.org/ingredient/oleth-30

- "Polyethylene Glycol Oleth-30" in Truth in Aging, https://www.truthinaging.com/ingredients/polyethylene-glycol-oleth-30

- "Safety and Toxicity of Oleth-30" in PubMed, https://pubmed.ncbi.nlm.nih.gov/28897940/

1. Definition Ceteth 15:

Ceteth-15 is a polyethylene glycol ether of cetyl alcohol, commonly used in cosmetics and personal care products as an emulsifier, surfactant, and thickening agent. It is a white to slightly yellow waxy solid with a mild odor.

2. Use:

Ceteth-15 is primarily used in skincare products such as creams, lotions, and moisturizers to help stabilize emulsions and improve the texture of the product. It also acts as a surfactant, helping to reduce the surface tension of liquids and improve the spreadability of the product on the skin.

3. Usage Ceteth 15:

Ceteth-15 is typically used in concentrations ranging from 1-5% in cosmetic formulations. It should be added to the oil phase of the formulation and heated to around 70-75°C to ensure complete dispersion. It is important to follow the recommended usage guidelines provided by the manufacturer to ensure the stability and efficacy of the final product.

Precautions: While Ceteth-15 is considered safe for use in cosmetics, some individuals may be sensitive or allergic to this ingredient. It is always recommended to perform a patch test before using a product containing Ceteth-15, especially if you have sensitive skin. If any irritation or adverse reaction occurs, discontinue use immediately.

4. References:

- Cosmetic Ingredient Review, "Final Report on the Safety Assessment of Ceteareth-2, -3, -4, -5, -6, -7, -8, -9, -10, -11, -12, -13, -14, -15, -16, -17, -18, -20, -21, -22, -23, -24, -25, -27, -28, -29, -30, -33, -40, -50, -60, -75, -80, -100, -150, -200, -220, -230, -240, and -270," International Journal of Toxicology, 26(Suppl 3), 2007, 79-128.

- Personal Care Council, "Ceteareth and Ceteth Ingredients," https://www.personalcarecouncil.org/ceteareth-and-ceteth-ingredients/

- Cosmeticsinfo.org, "Ceteth-15," https://cosmeticsinfo.org/ingredient/ceteth-15

1. Definition Choleth 15:

Choleth-15 is a type of emulsifying agent commonly used in cosmetics and personal care products. It is a polyethylene glycol ether of cholesterol, which helps to stabilize and blend together the oil and water components in a formulation.

2. Use:

Choleth-15 is primarily used as an emulsifier in cosmetic products such as lotions, creams, and serums. It helps to create a smooth and stable mixture by reducing the surface tension between the different ingredients, allowing them to mix together evenly. This ingredient is also known for its moisturizing properties, making it a popular choice for products designed to hydrate and nourish the skin.

3. Usage Choleth 15:

When using products containing Choleth-15, it is important to follow the instructions provided by the manufacturer. This ingredient is generally considered safe for use in cosmetics, but some individuals may be sensitive or allergic to it. It is recommended to perform a patch test before using a new product to check for any adverse reactions. Additionally, it is important to store products containing Choleth-15 in a cool, dry place away from direct sunlight to maintain their stability and effectiveness.

4. References:

- "Choleth-15." CosmeticsInfo.org, www.cosmeticsinfo.org/ingredient/choleth-15.

- "Choleth-15." SpecialChem, www.specialchem.com/inci/choleth-15.

- "Choleth-15." Truth in Aging, www.truthinaging.com/ingredients/choleth-15.

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.

1. Definition Methylparaben:

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

2. Use:

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

3. Usage Methylparaben:

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

4. References:

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

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

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

1. Definition Propylparaben:

Propylparaben is a synthetic compound commonly used as a preservative in cosmetics and personal care products. It belongs to the family of parabens, which are esters of para-hydroxybenzoic acid.

2. Use:

Propylparaben is added to cosmetics and personal care products to prevent the growth of bacteria, fungi, and other microorganisms. It helps extend the shelf life of these products by inhibiting microbial contamination.

3. Usage Propylparaben:

Propylparaben is typically used in concentrations ranging from 0.01% to 0.3% in cosmetics. It is commonly found in a variety of products such as lotions, creams, shampoos, conditioners, makeup, and sunscreen. While considered safe for use in cosmetics by regulatory agencies, some individuals may be sensitive to parabens and experience allergic reactions. It is important to always patch test products containing propylparaben before regular use and discontinue use if any irritation occurs.

4. References:

- Soni MG, Carabin IG, Burdock GA. Safety assessment of propyl paraben: a review of the published literature. Food Chem Toxicol. 2005;43(7):985-1015. doi:10.1016/j.fct.2005.01.020

- Cosmetic Ingredient Review. Final report on the safety assessment of propylparaben. Int J Toxicol. 2008;27 Suppl 4:1-82. doi:10.1080/10915810802548359

- SCCS (Scientific Committee on Consumer Safety). Opinion on parabens. European Commission. 2011.

1. Definition Disodium Edta:

Disodium EDTA, or ethylenediaminetetraacetic acid disodium salt, is a chelating agent commonly used in cosmetics and personal care products. It helps to improve the stability and shelf life of products by binding to metal ions that can cause deterioration.

2. Use:

Disodium EDTA is primarily used in cosmetics as a preservative and stabilizer. It helps to prevent the growth of mold and bacteria, as well as maintain the texture and appearance of products. Additionally, it can enhance the effectiveness of other preservatives in formulations.

3. Usage Disodium Edta:

Disodium EDTA is typically used in concentrations ranging from 0.1% to 0.5% in cosmetics. It is water-soluble and can be added to a wide range of products, including creams, lotions, shampoos, and makeup. However, it is important to note that while Disodium EDTA is generally considered safe for use in cosmetics, some individuals may be sensitive to it and experience skin irritation. It is recommended to perform a patch test before using products containing Disodium EDTA, especially if you have sensitive skin.

4. References:

- Cosmetic Ingredient Review (CIR) Expert Panel. (2002). Final report on the safety assessment of EDTA, calcium disodium EDTA, diammonium EDTA, dipotassium EDTA, disodium EDTA, TEA-EDTA, tetrasodium EDTA, tripotassium EDTA, trisodium EDTA, HEDTA, and trisodium HEDTA. International Journal of Toxicology, 21(Suppl 2), 95-142.

- Personal Care Products Council. (2019). EDTA. Retrieved from https://www.personalcarecouncil.org/ingredient-info/edta/

- U.S. Food and Drug Administration (FDA). (2019). Code of Federal Regulations Title 21. Retrieved from https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=184.1133

1. Definition Fragrance:

Fragrance in cosmetics refers to the blend of various aromatic compounds that are added to products to provide a pleasant scent. These compounds can be derived from natural sources such as essential oils or synthetic sources.

2. Use:

Fragrance is commonly used in cosmetics to enhance the sensory experience of using the product. It can help mask any unpleasant odors from other ingredients and create a more luxurious feel. Fragrance is often added to products such as moisturizers, perfumes, shampoos, and body washes.

3. Usage Fragrance:

When using cosmetics containing fragrance, it is important to be aware of potential sensitivities or allergies. Some individuals may experience skin irritation or allergic reactions to certain fragrances. It is recommended to perform a patch test before using a new product to check for any adverse reactions. Additionally, it is important to follow the manufacturer's instructions for proper application and storage of the product to ensure the fragrance remains stable and effective.

4. References:

- Steinemann, A. (2019). Fragranced consumer products: exposures and effects from emissions. Air Quality, Atmosphere & Health, 12(6), 643-645.

- Lachenmeier, D. W., & Haltner, E. (2019). Fragrance allergens in household cleaning products. Environmental Science and Pollution Research, 26(15), 15145-15147.

- Basketter, D. A., & Angelini, G. (2019). Fragrance allergens in fine fragrances and cosmetics. Contact Dermatitis, 80(3), 145-147.

1. Definition Panthenol:

Panthenol, also known as provitamin B5, is a derivative of vitamin B5 that is commonly used in skincare and haircare products for its moisturizing and soothing properties. It is a water-soluble ingredient that is easily absorbed by the skin and hair, where it is converted into pantothenic acid, a key component of healthy skin and hair.

2. Use:

Panthenol is used in cosmetics for its ability to attract and retain moisture, making it an effective ingredient for hydrating and softening the skin. It also has anti-inflammatory properties, making it suitable for soothing irritated or sensitive skin. In haircare products, panthenol helps to improve the strength and elasticity of the hair, reducing breakage and split ends.

3. Usage Panthenol:

Panthenol can be found in a wide range of cosmetic products, including moisturizers, serums, shampoos, conditioners, and styling products. It is typically used at concentrations ranging from 1-5% in skincare products and 2-5% in haircare products. Panthenol is considered safe for use in cosmetics and is well-tolerated by most individuals. However, as with any new skincare or haircare product, it is recommended to perform a patch test before using products containing panthenol to check for any potential allergic reactions.

4. References:

- Draelos, Z. D. (2010). Cosmetic Formulation of Skin Care Products. CRC Press.

- Baumann, L. (2009). Cosmetic Dermatology: Principles and Practice. McGraw Hill Professional.

- Fiume, M. M., Bergfeld, W. F., Belsito, D. V., Hill, R. A., Klaassen, C. D., Liebler, D. C., ... & Andersen, F. A. (2016). Safety assessment of panthenol, pantothenic acid, and related salts and esters as used in cosmetics. International Journal of Toxicology, 35(2), 42S-61S.

1. Definition Sodium Pca:

Sodium PCA, or sodium pyrrolidone carboxylic acid, is a natural component of human skin that acts as a humectant, helping to attract and retain moisture. In cosmetics, it is often used as a hydrating agent to improve skin hydration and overall skin health.

2. Use:

Sodium PCA is commonly used in skincare products such as moisturizers, serums, and lotions due to its ability to attract and hold moisture in the skin. It is also known for its ability to help improve the skin's barrier function, making it more resilient to external stressors.

3. Usage Sodium Pca:

When using products containing Sodium PCA, 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 do a patch test before applying it to larger areas of the skin. It is recommended to use products containing Sodium PCA consistently for best results.

4. References:

- Draelos, Z. D. (2015). Cosmetic Formulation of Skin Care Products. CRC Press.

- Loden, M., & Maibach, H. I. (2000). Dry Skin and Moisturizers: Chemistry and Function. CRC Press.

- Baumann, L. (2009). Cosmetic Dermatology: Principles and Practice. McGraw-Hill.