Ammonium Acryloyldimethyltaurate/Steareth-25 Methacrylate Crosspolymer

This crosslinked copolymer of ammonium acryloyldimethyltaurate and steareth-25 methacrylate works as a rheology modifier in cosmetics. It's chosen to build viscosity, stabilize oil-in-water emulsions, and create a smooth, flexible film.
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Ingredient Snapshot

Overview
Gives formulas a cushioned glide and a light, flexible finish.
Category
Emulsifying, Tone/Texture
Type
Rheology Modifier

Ingredient Ratings

Overall Rating

Great

Comedogenic Risk

None

Skin Benefits

Gives formulas a cushioned glide and helps keep mixed phases uniform for a more elegant feel. Forms an invisible, flexible layer that helps products stay in place without heaviness.

Uses In Skincare & Cosmetics

Often found in gels, serums, and lightweight creams where a silky, non-drippy texture is desired. Also used in sunscreens and primers to improve spreadability and hold.

Comedogenic Rating

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

Safety

Generally low irritation potential at cosmetic levels; mild, transient stinging is possible on very sensitive or compromised skin. Contains a PEG-derived component (steareth-25), which is widely used in cosmetics and not expected to increase irritation under normal conditions.

Is Ammonium Acryloyldimethyltaurate/Steareth-25 Methacrylate Crosspolymer a Good Ingredient?

This rates Great: A highly stable, versatile rheology modifier that reliably builds viscosity and forms a flexible film across a wide pH range with good salt tolerance. Typically low in irritation at normal use levels, supporting elegant texture without compromising skin comfort.