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PCA (Pyrrolidone Carboxylic Acid)
PCA (Pyrrolidone Carboxylic Acid)
Also known as: pyrrolidone carboxylic acid, pyroglutamic acid
Safe
Considered safe as used in cosmetics by the Cosmetic Ingredient Review. Naturally occurring in human skin; helps maintain hydration.
What it is
A cyclic amino acid derivative naturally present in human skin as part of its natural moisturizing factor (NMF).
Humectant and skin-conditioning agent in cosmetics; not a food ingredient.
Regulatory status
United States — FDA
Permitted cosmetic ingredient
European Union — EFSA
Not a food ingredient; permitted cosmetic ingredient under EU Cosmetic Regulation
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