Film Former
BUTYLATED POLYOXYMETHYLENE UREA
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A butylated urea-formaldehyde resin used as a film former in nail and hair products. The formaldehyde backbone means residual release is a real concern — both as a known sensitizer and an IARC Group 1 carcinogen.
Function
Skin benefits
- Forms durable film in nail polish
- Improves coating adhesion
- Adds gloss to formulations
Known concerns
- Urea-formaldehyde resin can release residual formaldehyde
- Formaldehyde is a known sensitizer and IARC Group 1 carcinogen
- Allergic contact dermatitis risk in nail and hair products
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.