Film Former
BETA-SITOSTERYL (OCTADECENE/MA) COPOLYMER
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A copolymer of plant-derived beta-sitosterol with an octadecene/maleic anhydride backbone — forms a flexible film for conditioning and substantivity. Generally safe at cosmetic levels with no flagged concerns.
Function
Skin benefits
- Plant sterol-based conditioning
- Forms flexible film on skin and hair
- Maleic anhydride copolymer provides film integrity
Known concerns
- Trace residual maleic anhydride monomer possible
- Limited dedicated cosmetic dossier
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.