Is Potassium PCA vegan?
Potassium PCA
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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