What Is It?The Steareth ingredients (Steareth-2, Steareth-4, Steareth-6, Steareth-7, Steareth-10, Steareth-11, Steareth-13, Steareth-15, Steareth-20) are polyethylene glycol ethers of stearci acid. They are waxy compounds. In cosmetics and personal care products, Steareth ingredients are used in the formulation of personal cleanliness products and deodorants, as well as suntan, fragrance, skin, eye and hair products. Show Why is it used in cosmetics and personal care products?When added to cosmetics and personal care products, the Steareth ingredients reduce the interactive forces between molecules of other liquids so that an emulsion Scientific Facts:The Steareths are prepared by reacting ethylene oxide with stearyl alcohol Safety Information:The Food and Drug Administration (FDA) permits fatty alcohols (including stearic alcohol More safety Information:CIR Safety Review: The CIR Expert Panel decided that the data on Steareth-2, -10, and -20 were sufficient to reach a decision on the entire group of Steareth ingredients, including Steareth-4, -6, -11, -13 and -15 because of the chemical similarity of all the Steareths. Steareth-2 and -10 were nontoxic in acute oral toxicity studies. In subchronic testing, Steareth-20 was nontoxic when administered dermally at concentrations of 4%. Steareth-2 and -10, at concentrations up to 60% in water, were at most mildly irritating to eyes and only mild irritants when tested in cosmetic formulations at concentrations up to 60%. Structurally similar polyoxyethylene alkyl ethers were neither mutagenic nor tumor promoters. Steareth-2, -10 and -20 in water were neither primary irritants nor sensitizers to human skin. Steareth-20 was not phototoxic. Small amounts of 1,4-dioxane, a by-product of ethoxylation, may be found in the Steareth ingredients. The potential presence of this material is well known and can be controlled through purification steps to remove it from the ingredients before blending into cosmetic formulations. Link to more information about what the Food and Drug Administration (FDA) is doing to assure that cosmetics do not contain unsafe levels of 1,4-dioxane. Link to the FDA Code of Federal Regulations: Steareth-2, Steareth-4, Steareth-6, Steareth-7, Steareth-10, Steareth-11, Steareth-13, Steareth-15 and Steareth-20 may be used in cosmetics and personal care products marketed in Europe according to the general provisions of the Cosmetics Directive of the European Union. Ingredients of animal origin must comply with European Union animal by-products regulations. Link to the EU Cosmetic Regulation: More Scientific Information:The Steareth ingredients are a series of polyoxyethylene stearyl ethers. In cosmetics and personal care products, the Steareths function mainly as surfactant Irritancy: 2 Comedogenicity: 2 DetailsA waxy solid material that helps oil and water to mix together, aka emulsifier. It is derived from the fatty alcohol, stearyl alcohol by ethoxylating it and thus making the molecule a little water-soluble. This version has only a small amount of ethoxylation and thus the molecule is still largely oil soluble. It is often mixed with more water-soluble emulsifiers (such as Steareth-20) to create stable emulsion systems. Products with Steareth-2Is stearethIn 2012, the independent Cosmetic Ingredient Review panel ruled that steareth-2 is safe as used in cosmetics in amounts up to 10%.
Does stearethSteareth-2 is a surfactant composed of polyethylene glycol polymer and stearyl alcohol.
How is steareth alcohol used in skin care?Steareth-20 is a derivative of the benign fatty ingredient stearyl alcohol. In cosmetics, it functions primarily as a surfactant but is also used to make products more stable, especially if they contain active ingredients in an emulsion.
What does stearethSteareth-20 is added to cosmetics and personal care products because it functions as a cleansing agent, a surfactant, and an emulsifier. In skin care products, Steareth-20 works to degrease and emulsify oils and fats and suspend soil, allowing them to be washed away.
|