Is Hyaluronic acid, polymer with 2,2'-[1,4-butanediylbis(oxymethylene)]bis[oxirane] vegan?

Sodium Hyaluronate Crosspolymer-4 is also known as Hyaluronic acid, polymer with 2,2'-[1,4-butanediylbis(oxymethylene)]bis[oxirane].

Sodium Hyaluronate Crosspolymer-4 is the sodium salt of a polymer of hyaluronic acid crosslinked with 1,4-butanediol diglycidyl ether.

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