Film Former
STYRENE/ACRYLATES/ACRYLONITRILE COPOLYMER
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A styrene/acrylates/acrylonitrile copolymer used as a film former and opacifier. Polymer form is essentially inert, but residual acrylonitrile (a possible carcinogen) and styrene push this into use-with-awareness territory.
Function
Skin benefits
- Forms durable opacifying films
- Provides product structure and visual interest
- Improves long-wear performance
- High molecular weight limits direct skin penetration
Known concerns
- Acrylonitrile monomer is an IARC Group 2B possible carcinogen
- Styrene residuals (IARC 2B)
- EU residual-monomer scrutiny
- Microplastic environmental concerns
- More sensitization potential than non-acrylonitrile copolymers
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, so always read the physical product label and consult a healthcare professional for personal concerns.