Snapshot
- Overview
- Thickens oils and keeps formulas from separating or dripping.
- Category
- Tone/Texture
- Type
- Rheology Modifier
Trihydroxystearin
Trihydroxystearin is a hydrogenated castor oil derivative made of glycerol tri-12-hydroxystearate. It structures and thickens oil phases, stabilizing suspensions and adjusting viscosity for smooth, non-drip textures.
Like this ingredient?
Our take
Is Trihydroxystearin a Good Ingredient?
It rates Good as an effective oil-phase structurant that stabilizes formulas and creates smooth, non-drip textures, with a low tendency to irritate. Its value lies mainly in formulation performance rather than direct skin effects, which keeps it from a higher rating.
What it does
Skin Benefits
Keeps formulas uniform so color and active ingredients apply evenly, and adds a plush, cushiony sensation during wear.
Where you'll find it
Uses in Skincare & Cosmetics
Frequently used in balms, lipsticks, and anhydrous salves for a stable, solid texture, and also found in foundations and cream-to-gel treatments to maintain consistency and prevent separation.
Before you use it
Safety
Considered low risk for irritation or sensitization at common use levels. Heavier anhydrous products using this thickener may feel occlusive for some acne-prone users, depending on the overall composition.
Products with Trihydroxystearin
