Acrylates/Ammonium Methacrylate Copolymer is a synthetic polymer that forms a thin, flexible film on the skin or hair. This film can help to hold other ingredients in place, provide water resistance, and improve the longevity of cosmetic products. It is commonly found in mascaras, eyeliners, and sunscreens.
Rated by SpottyLabs' ingredient methodology, independent of brands.
