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Is PEG-400/1,4-Butanediol/SMDI Copolymer vegan?

PEG-400/1,4-Butanediol/SMDI Copolymer

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PEG-400/1,4-Butanediol/SMDI Copolymer is a synthetic copolymer formed from PEG-400, 1,4-butanediol, and saturated bis-methylene diphenyldiisocyanate (SMDI) monomers, used as a film-forming polymer in cosmetics.

Also known as 1,4-Butanediol, polymer with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,2-ethanediyl) and 1,1'-methylenebis[4-isocyanatocyclohexane],1,4-Butanediol polymer, with \a-hydro-\q-hydroxypoly(oxy-1,2-ethanediyl) and 1,1'-methylenebis[4-isocyanatocyclohexane], block, 1342797-89-0
INCI name PEG-400/1,4-Butanediol/SMDI Copolymer
CAS number 155801-96-0
CosIng ID 89954
Last reviewed 4 July 2026

An ingredient is considered vegan if it contains no animal-derived components at any point in its production.

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