Is L-Proline, 5-Oxo-, 2-Phenoxyethyl Ester vegan?

Phenoxyethyl PCA is also known as L-Proline, 5-Oxo-, 2-Phenoxyethyl Ester.

An ester of phenoxyethanol and PCA (pyrrolidone carboxylic acid), used in cosmetics as a humectant and skin-conditioning agent.

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