Film Former
POLYURETHANE-104
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A urethane-acrylate copolymer combining HDI isocyanurate trimer with HEA/HEMA monomers, used as a film former in nail products. Generally safe as cured polymer; residual isocyanate and acrylate monomer levels are the key compliance point.
Function
Skin benefits
- Durable nail film-forming
- Combines flexibility and chip resistance
- Suitable for both water- and solvent-based nail systems
- High-MW polymer limits skin penetration
Known concerns
- Residual HDI isocyanurate possible (respiratory sensitizer)
- Residual HEA and HEMA monomers possible (skin sensitizers)
- Microplastic environmental persistence
- Strict EU residual monomer control required
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.