Is 5-Oxo-L-Proline, Reaction Products with Methylsilanol, Copper Salts vegan?

Copper PCA Methylsilanol is also known as 5-Oxo-L-Proline, Reaction Products with Methylsilanol, Copper Salts.

Copper PCA Methylsilanol is a synthetic complex formed from the reaction of 5-oxo-L-proline (PCA) with methylsilanol and copper salts, used as a skin conditioning agent in cosmetics.

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