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Film Former

POLYURETHANE-27

CAS 328389-91-9
45

Safety score · 0–100

Moderate

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

About

A fluorinated polyurethane polymer with film-forming properties, whose environmental and regulatory profile raises moderate concerns.

Polyurethane-27 is a complex polymer incorporating polyperfluoroethoxymethoxy difluorohydroxyethyl ether and isophorone diisocyanate (IPDI), further reacted with a triethylamine salt. The restriction note references 'ban substances that deplete the ozone layer,' suggesting perfluoroether components that have faced environmental phase-outs (e.g., PFOS, PFOA-related compounds). While not a direct CMR (Carcinogenic, Mutagenic, or toxic to Reproduction) classification under EU law, the perfluorinated moiety places this ingredient in a higher-scrutiny category, with an EU regulatory flag that warrants caution.

Function

FILM FORMINGHAIR CONDITIONINGSKIN PROTECTING

Skin benefits

  • Film forming
  • Water-resistant barrier
  • Hair conditioning

Known concerns

  • Perfluorinated component subject to environmental restrictions
  • Potential persistent bioaccumulative toxicity (PBT) concern
  • IPDI component risk when monomer is unbound

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 — always read the physical product label and consult a healthcare professional for personal concerns.