Steareth-21 is a polyethylene glycol ether made from stearic acid. It is used as an emulsifier in cosmetics and personal care products, including makeup, lotions, personal cleanliness products and deodorants, as well as suntan, fragrance, skin, eye and hair care products.
Side Effects:
Steareth-21 is considered a low hazard ingredient by the Cosmetics Database. There are some concerns regarding the contamination of Steareth 21 with small amounts of 1,4-dioxane, a by-product of ethoxylation and a known toxin. However, this contamination can be controlled through purification and is not considered a likely hazard in cosmetics or personal care products.
More about: Steareth-21
Read more: Cosmetic ingredients
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