CheckVegan

Is Potassium PCA vegan?

Potassium PCA

Vegan Vegan
Vegetarian Vegetarian

Potassium PCA is the potassium salt of pyrrolidone carboxylic acid (5-oxo-L-proline), a naturally occurring component of the skin's natural moisturizing factor, produced synthetically or by fermentation for cosmetic use as a humectant.

Also known as Potassium 5-oxo-L-prolinate
INCI name Potassium PCA
EC number 225-373-9
CosIng ID 37012
Last reviewed 4 July 2026

An ingredient is considered vegan if it contains no animal-derived components at any point in its production.

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