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Film Former

POLYURETHANE-40

Updated
78

Safety score · 0–100

Fine

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

About

A polyurethane film-forming polymer (Polyurethane-40) used in sunscreens, mascaras and styling products. Once cured, the polymer is essentially inert on skin; modern grades keep residual isocyanate monomers very low.

Function

FILM FORMING

Skin benefits

  • Flexible film
  • Long-wear
  • Water resistance

Known concerns

  • Residual isocyanate control needed
  • Microplastic discussion
  • Limited public cosmetic data

References

EU

EU CosIng database

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

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Check your shelf

Find POLYURETHANE-40 in your products.

Scan any cosmetic product with LuxSense to see if it contains POLYURETHANE-40 and get a full ingredient breakdown with safety scores.

This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.