Is PEG-220/SMDI Copolymer vegan?

Bis-Lauryldimoniumhydroxyethyl Bromide (PEG-220/SMDI Copolymer) is also known as PEG-220/SMDI Copolymer.

This ingredient is a synthetic polymeric quaternary ammonium salt formed from PEG-220, saturated methylene diphenyl diisocyanate (SMDI), and dodecyl(2-hydroxyethyl)dimethylammonium bromide, used as a conditioning agent in hair care products.

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