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Film Former

POLYURETHANE-33

74

Safety score · 0–100

Fine

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

A flexible polyurethane film former used in long-wear cosmetics like mascara. Cured polymer is inert; manufacturing controls residual monomers.

Function

BINDING

Skin benefits

  • Flexible film former for long wear
  • Good water resistance
  • Polymer too large for skin penetration
  • Common in mascara and color cosmetics

Known concerns

  • Possible residual isocyanate from manufacture
  • Not biodegradable

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.