Zinc PCA
Helps attract water.
What it is
The zinc salt of PCA, a substance found naturally in the skin's outer layer.
A humectant that helps hold moisture, also used as a skin conditioning agent.
What it does in a formula
Helps attract waterOfficial EU function: Humectant
Keeps skin in good conditionOfficial EU function: Skin conditioning
What official sources say
Restricted in certain uses · Cosmetics, EU
Allowed in EU cosmetics only within set limits and conditions (Annex III, entry 24).
Regulation (EC) No 1223/2009, Annex III: list of substances which cosmetic products must not contain except subject to the restrictions laid down (CosIng), retrieved 2026-10-09