PCA Pyrrolidone Carboxylic Acid (Active ingredient)

PCA Pyrrolidone Carboxylic Acid
L-pyrrolidone carboxylic acid (usually PCA or pidolic acid) is a physiological molecule naturally present in the skin where it plays a moisturizing role. PCA is widely used in cosmetic compositions to hydrate the skin, thus giving it a smooth and supple feel.
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