Film Former
AMMONIUM STYRENE/ACRYLATES COPOLYMER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
An ammonium-salt styrene/acrylates copolymer used to opacify rinse-off products. Polymer itself is inert; styrene monomer purity matters since styrene is classified as possibly carcinogenic.
Function
Skin benefits
- Opacifying and pearlizing agent
- Forms stable polymer dispersion
- Improves product appearance
Known concerns
- Trace residual styrene monomer (suspected carcinogen) in poorly purified grades
- Polymer itself does not penetrate skin
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related film formers
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.