Ingredient
Styrene/Acrylates/Ammonium Methacrylate Copolymer
What it is
A synthetic acrylic-styrene copolymer resin used in mascaras and other color cosmetics as a film-former that binds pigment and reinforces the dried product film.
How it works
Forms a flexible polymer film around lash fibers and pigment particles as the water-based product dries, holding color, curl, and volume in place.
What it does
Opacifying
Film forming
Concerns to know
-
Well tolerated
No significant safety concern is reported for this ingredient as used in cosmetics.