Film Former
BIS-HEA POLY(GLYCOL/1,4-BUTANEDIOL ADIPATE)/IPDI COPOLYMER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A complex polyurethane polymer that forms a flexible film on skin. Used to make sunscreens and makeup last longer. Safe at cosmetic levels; mostly an environmental concern.
This is a segmented polyurethane copolymer built from isophorone diisocyanate (IPDI), adipate polyester soft segments, and bis-hydroxyethyl acrylamide (HEA) end caps. It functions as a film former and water-resistance booster, particularly in sunscreens and long-wear makeup. Polymer itself is inert at cosmetic use levels; the key manufacturing concern is controlling free IPDI monomer, which is a respiratory sensitizer (not a finished-product concern when properly made). No SCCS-specific opinion; not biodegradable, so environmental persistence is a real concern. CIR has reviewed related IPDI-based cosmetic polymers as safe when manufacturing limits are observed.
Function
Skin benefits
- Forms a flexible, long-wearing film
- Boosts water resistance in sunscreens and makeup
- Improves texture and spreadability
Known concerns
- Polyurethane-type polymer; residual isocyanate monomer must be controlled
- Limited standalone cosmetic-specific review
- Not biodegradable
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.