CheckVegan

Is PCA vegetarian?

PCA

Vegetarian Vegetarian
Vegan Vegan

PCA (pyrrolidone carboxylic acid) is a natural component of the skin's natural moisturizing factor, produced synthetically or via fermentation for use as a humectant in cosmetics.

Also known as L-2-Pyrrolidone-5-carboxylic Acid, Pidolic Acid
INCI name PCA
CAS number 98-79-3
EC number 202-700-3
CosIng ID 77186
Last reviewed 9 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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