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Film Former

POLYBUTYLENE GLYCOL/MDI COPOLYMER

60

Safety score · 0–100

Fine

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

A polyurethane-type film former built from polybutylene glycol and MDI. Cured polymer is essentially inert; safety profile depends on how tightly residual MDI monomer is controlled.

Function

FILM FORMING

Skin benefits

  • Forms a smooth, flexible film on skin/nails
  • Improves wear and gloss
  • Good substantivity

Known concerns

  • MDI starting monomer is a known respiratory sensitizer
  • Residual isocyanate must be tightly controlled
  • Microplastic/biodegradability watch

References

EU

EU CosIng database

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

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Check your shelf

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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.