Is 2,2'-Ethylenedithiodiethanol vegan?

Dithiaoctanediol is also known as 2,2'-Ethylenedithiodiethanol.

Dithiaoctanediol, also known as 2,2'-ethylenedithiodiethanol, is a synthetic organosulfur compound used in cosmetic formulations, notably in permanent wave and hair straightening products.

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