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Film Former

AMMONIUM ACRYLATES/METHYLSTYRENE/STYRENE COPOLYMER

78

Safety score · 0–100

Fine

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

An acrylate-styrene copolymer used to build durable films in styling, color and long-wear products. The cured polymer is essentially inert, but reputable suppliers strip residual styrene monomer well below classification thresholds.

Function

FILM FORMING

Skin benefits

  • Forms durable, opacifying films
  • Improves wear in color cosmetics and hair styling
  • Builds viscosity in water-based systems

Known concerns

  • Trace residual styrene monomer possible in poorly stripped grades
  • Styrene listed by IARC as Group 2A — but only at monomer level, not in cured polymer
  • Limited specific toxicology on this exact terpolymer

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

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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.