Film Former
POLYSTYRENE
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A plastic polymer used as filler or texturizer. EU REACH restriction on microplastics in cosmetics is phasing it out; persistent environmental pollutant with residual styrene concerns.
Skin benefits
- Provides texture and bulk in some formulations
- Inert film-forming polymer
Known concerns
- Microplastic — EU banned intentionally added microplastics from 2023 (rinse-off) and rolling deadlines for leave-on
- Persistent environmental pollutant
- Residual styrene monomer (IARC Group 2A) possible
- Not biodegradable
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.