Film Former
OCTADECENE/MA COPOLYMER OCTADODECYL/BETA-SITOSTERYL 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 with octadodecyl and plant-sterol (beta-sitosteryl) side branches — gives a softer, more cosmetic skin feel than plain polymer film. Low penetration; main caveat is microplastic persistence.
Function
Skin benefits
- Long-wear film-former with elegant skin feel
- Beta-sitosteryl branch adds plant-sterol slip
- Low dermal penetration (high MW)
- Useful in colour cosmetics and sunscreens
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.