Is Butane-1,3-diol vegan?

Butylene Glycol is also known as Butane-1,3-diol.

Butylene Glycol (1,3-butanediol) is a small organic diol used as a humectant, solvent, and viscosity-decreasing agent in cosmetics. It is produced synthetically from petrochemical feedstocks or via fermentation.

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