Cited skincare — peer-reviewed evidence, no upsell.
Tr

Trihydroxystearin

TrihydroxystearinBarrier

A castor-derived wax used to thicken oils, gel liquid oils, and stabilize anhydrous formulas.

What it does

Trihydroxystearin is a hydrogenated castor-oil derivative. It thickens and gels the oil phase, helps suspend pigments, and keeps oily formulas from separating, so it is used as an oil-phase structuring agent in balms and color products. It is a texture-and-structure ingredient rather than a skin active.

This page is public and indexed on purpose (unlike profiles and drops, which are unlisted) — it’s the citation behind shared ingredient cards, and it should be findable.
Want more like this?
Get Drop, free. Every flag cites its source, the app tells you when your routine is complete, and it helps you simplify — instead of selling you more products.