EWG Level: 1

Trihydroxystearin is a lipid composed of glycerin and hydroxystearic acid, a type of fatty acid. One method of producing both Trihydroxystearin and hydroxystearic acid involves the catalytic hydrogenation of castor oil. In cosmetics and personal care products, Trihydroxystearin is used in the formulation of body, hand and skin care preparations. It is also used in makeup preparations including eye makeup, blushers, face powders, foundations and lipstick.

Funtions: Skin-Conditioning Agent – Occlusive; Viscosity Increasing Agent – Nonaqueous

Ecological Concerns, “Uncertain environmental toxin and uncertain persistent or bioaccumulative, Not suspected to be persistent, Classified as not expected to be potentially toxic or harmful” (Environment Canada Domestic Substance List)

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