Is Bis-HEMA Poly(1,4-Butanediol Adipate)/IPDI Copolymer vegan?

Bis-HEMA Poly(1,4-Butanediol Adipate)/IPDI Copolymer is a synthetic urethane polymer produced by condensing 1,4-butanediol with adipic acid to form a polyester, reacting it with isophorone diisocyanate (IPDI), and end-capping the resulting polymer with HEMA (hydroxyethyl methacrylate).

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

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