Safety Assessment of PCA (2-Pyrro…s Used in Cosmetics.

Findings

Sodium PCA and related salt forms (calcium, magnesium, potassium) are safe for use in cosmetics at current concentrations, according to the Cosmetic Ingredient Review Expert Panel. The main caveat: these ingredients shouldn't be used in products where N-nitroso compounds could form, as that combination poses a safety concern.

Design
Review
Evidence
Moderate
Journal
International journal of toxicology