Polyurethane-63
INCI: POLYURETHANE-63
Reviewed by Daisy · Last updated 18 Aug 2026
What Is Polyurethane-63?
Polyurethane-63 is a complex polymer formed by first reacting dimethylolpropionic acid (DMPA) and isophorone diisocyanate (IPDI) with a polyester diol made with Adipic Acid, isophthalic acid, and Hexanediol. The resulting prepolymer is then neutralized with triethylamine and finally, chain-extended with ethylenediamine.
Its declared cosmetic function is film forming.
Source: European Commission CosIng inventory.
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