Is 2-Oxo-1,3-thiazolidine vegan?

Oxothiazolidine is also known as 2-Oxo-1,3-thiazolidine.

Oxothiazolidine, also known as procysteine, is a synthetic organic compound derived from cysteine, classified as a 2-oxo-1,3-thiazolidine derivative, used as a skin conditioning agent in cosmetics.

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