What Is Polysorbate 20? Polysorbate 20 is an ingredient used in skincare and cosmetic formulations to improve the texture, feel, and scent of the product. It is mainly used as a surfactant, emulsifier, and fragrance ingredient. Polysorbate 20, also listed on an ingredient label as Tween 20, is formed by the ethoxylation of sorbitan before …
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