Film Former
POLYUREA CROSSPOLYMER-4
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A highly crosslinked polyurea film former used for scratch-resistant long-wear coatings in nail and cosmetic products. Cured polymer is well-tolerated; residual diisocyanate monomer is the standard flag.
Function
Skin benefits
- Forms tough, durable films
- Excellent scratch resistance
- Long-wear performance
- Good for nail and cosmetic coatings
Known concerns
- Trace residual diisocyanate possible — sensitiser
- Not biodegradable
- Limited published cosmetic-specific safety data
- Sensitisation risk if poorly purified
References
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.