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Stearoxytrimethylsilane
StearoxytrimethylsilaneBarrier
Softens skin and gives a smooth, silky feel.
What it does
It’s stearyl alcohol, a fatty alcohol, joined to a small silicon group.
The evidence, graded
expert consensusUS safety reviewers (2017) assessed four alkoxyl alkyl silanes, which products use to bind, condition or soften skin, or coat particles. Stearoxytrimethylsilane is a silicon compound listed as a skin softener. Data on it were lacking, and the reviewers judged the data on its three relatives enough to cover it. They judged all four safe as used, and asked makers to keep heavy metals and other impurities low.Becker 2017 · Cosmetic Ingredient Review ↗
Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.
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