Science Blog
Ingredients --
Sodium PCA
Chemical Formula:

Synonyms
Sodium-2-pyrrolidone carboxylate
Description
Pale yellow clear liquid
Uses
Sodium PCA is hygroscopic, attracting moisture from the air. It is used as a moisturizer (humectant) for hair and skin care products.
It is a stronger hydrating agent than the traditional compounds used for this purpose, such as glycerine, propylene glycol, or sorbitol.
By Simon Quellen Field