Sodium PCA (Sodium Pyrrolidone Carboxylic Acid) is a kind of natural moisturizing factor (NMF) and found naturally in the skin. Its moisturizing ability is stronger than glycerin, propylene glycol, and sorbitol. It becomes an important additive ingredient in skin-care and hair-care cosmetics in the recent years.
INCI Name: Sodium PCA
Chemical Name: Sodium 5-oxo-L-prolinate CAS No.: 28874-51-3
Chemical Formula: C5H6O3NNa
Molecular Weight: 151.1
Pale yellow clear liquid
Sodium PCA is used for its powerful humectant properties in many skin and hair care products including gels, creams, lotions, shampoos, conditioners, lipsticks and foundations.
Recommendatory volumes of usage in creams: 2-8%