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Film Former

METHYL ACRYLATE/STEARYL METHACRYLATE COPOLYMER

73

Safety score · 0–100

Fine

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

A hydrophobic film-forming copolymer pairing short methyl acrylate with long stearyl methacrylate, used in long-wear skin and hair products. The polymer is well tolerated; residual monomer levels are the main control point.

Function

FILM FORMING

Skin benefits

  • Hydrophobic film-forming for long-wear products
  • Provides water resistance in sunscreens and makeup
  • Stable through wide temperature ranges
  • High molecular weight limits skin penetration

Known concerns

  • Residual methyl acrylate monomer is a known sensitizer
  • Methacrylate residuals can also sensitize
  • Microplastic environmental concerns
  • EU residual-monomer compliance required

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.