Is Stearoxytrimethylsilane vegan?

Stearoxytrimethylsilane

Unconfirmed

Stearoxytrimethylsilane is a silicone-based ingredient formed by the reaction of stearyl alcohol with trimethylchlorosilane, used as an emollient and skin-conditioning agent in cosmetics. The stearyl alcohol component can be derived from animal or plant sources, so the vegan status depends on the origin of the raw material.

Also known as Trimethylsilyl stearate
CAS number 18748-11-3
Last reviewed 3 June 2026

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