Film Former
OCTADECENE/MA COPOLYMER ESTERS
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A long-chain olefin/maleic-ester copolymer used as a film-former in colour cosmetics and sunscreens. Skin-safe at use levels (too large to penetrate), but the persistence/microplastic environmental concern is the main caveat.
Function
Skin benefits
- Film-former — transfer-resistant cosmetics
- Water-resistance for sunscreens and make-up
- Low dermal penetration (high MW)
Known concerns
- Synthetic polymer — microplastic / persistence concern in wash-off
- Possible residual maleic anhydride monomer at low ppm
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.