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Film Former

BIS-HYDROXYPROPYLMETHACRYLATE POLY(1,4-BUTANEDIOL)-9/IPDI COPOLYMER

65

Safety score · 0–100

Fine

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

A polyurethane-style film-forming polymer used in long-wear make-up and mascaras. Inert once cured; main worry is residual isocyanate (IPDI) monomer, which can sensitise skin if not fully reacted.

Function

FILM FORMING

Skin benefits

  • Forms flexible film on skin/hair
  • Adds wear-resistance to make-up
  • Smooth, non-tacky finish

Known concerns

  • Synthetic polymer — not biodegradable
  • Residual monomer (IPDI) sensitiser if poorly purified
  • Marine micro-plastic concern

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.