Film Former
BIS-HEMA IPDI/PEG-4 COPOLYMER
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A HEMA / IPDI / PEG-4 copolymer used for UV-cured films. HEMA monomer is a known nail-product allergen restricted in EU. Cured polymer is safer than uncured residuals.
Skin benefits
- UV-curable film former — used in long-wear nail and similar products
- Polymer matrix with low absorption when cured
- Provides hard, glossy films
Known concerns
- HEMA (hydroxyethyl methacrylate) monomer is a well-documented allergen — banned in EU non-professional nail products since 2020
- IPDI isocyanate is a sensitizer
- Uncured residual monomer is the real risk
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, so always read the physical product label and consult a healthcare professional for personal concerns.