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Film Former

SODIUM ACRYLATE/METHYLSTYRENE/STYRENE COPOLYMER

58

Safety score · 0–100

Moderate

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A polystyrene-acrylate latex that adds pearly opacity to washes and creams. Skin-safe in itself, but EU REACH is phasing out this kind of microplastic — and residual styrene is a potential carcinogen.

Function

BINDINGNAIL CONDITIONING

Skin benefits

  • Polystyrene-acrylate latex used for opacifying and pearl effects
  • Cured polymer is inert on skin
  • Low-cost, well-known formulation tool

Known concerns

  • Falls under EU REACH 2023 microplastic restriction — being phased out as intentionally added microplastic
  • Residual styrene monomer is a possible IARC 2B carcinogen
  • Not biodegradable
  • Wash-off products will be banned in EU within transition windows

References

EU

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, so always read the physical product label and consult a healthcare professional for personal concerns.