Twinlab - Na-Pca Non-Oily - 8 oz. (237 ml) Twinlab Na-PCA without Aloe Vera is a Ph-Balanced concentrated solution of the sodium salt of Pyrrolidone Carboxylic Acid the natural moisturizing factor found in human skin. Na-PCA is synthesized from Glutamic Acid a nonessential amino acid. The skin co
