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Ingredient Facts
Polyurethane-25
AKA: PU-25
Skin Conditioning · Binding · EWG: 4
Synthetic
Skin Conditioner
Not Clean
Polyurethane-25 is a complex polymer formed by the reaction of dihydroxypolyoxobutylene (degree of polymerization 12-30), dimethylol propionic acid, meta-tetramethylenexylenediisocyanate, isophoronediisocyanate and trimethoylpropane. The prepolymer is neutralized with triethylamine and chain extended with C1-8 alkyl diamine
CAS #
-
Form
Powder
See origin →
Functions
Binding
Hair Waving Or Straightening
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
Modern synthetic polymer used in cosmetics for flexible film-forming and conditioning applications. Designed to enhance product performance and provide improved water resistance.