Film-Forming Agent

Ammonium Styrene/Acrylates Copolymer

INCI: AMMONIUM STYRENE/ACRYLATES COPOLYMER

Reviewed by Emma · Last updated 18 Aug 2026

What Is Ammonium Styrene/Acrylates Copolymer?

Ammonium Styrene/Acrylates Copolymer (INCI: AMMONIUM STYRENE/ACRYLATES COPOLYMER) is a cosmetic ingredient listed in the EU CosIng inventory. Ethenylbenzene, polymer with 2-propenoic acid, 2-methyl-2-propenoic acid and/or one of their simple esters, ammonium salts.

Its declared cosmetic functions are film forming and opacifying.

Source: European Commission CosIng inventory.

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