Film Former
BUTYLENE/ETHYLENE/STYRENE COPOLYMER
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A plastic copolymer used as a film former and texturizer. Skin-safe at high MW but raises microplastic and residual-styrene concerns under EU restrictions.
Function
Skin benefits
- Film former and viscosity controller
- Improves wear of color cosmetics
- Inert at high MW
- Stable in formulation
Known concerns
- Plastic polymer — microplastic environmental concern
- Residual styrene monomer risk depends on supplier
- Not biodegradable
- EU microplastic restrictions
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.