Film Former
POLYURETHANE-4
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A film-forming copolymer made with PPG glycols and isophorone diisocyanate. Good wear and flexibility on skin, but residual diisocyanate monomers and persistence raise caution flags.
Function
Skin benefits
- Long-lasting flexible film
- Water resistance
- Smooth finish on skin
Known concerns
- Residual isocyanate monomer risk
- Inhalation hazard in sprays
- Environmental persistence
- Sparse safety data
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related film formers
Check your shelf
Find POLYURETHANE-4 in your products.
Scan any cosmetic product with LuxSense to see if it contains POLYURETHANE-4 and get a full ingredient breakdown with safety scores.
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.