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?

Ingredient Snapshot

Overview
Thickens oils and keeps formulas from separating or dripping.
Category
Tone/Texture
Type
Rheology Modifier

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Keeps formulas uniform so color and active ingredients apply evenly, and adds a plush, cushiony sensation during wear.

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.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

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.

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.

Products with Trihydroxystearin

Related Ingredients