Twinlab - Na-PCA Natural Moisturizing Factor - 8 fl. 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. TwinLab Na-PCA Non Oily Highlights: The Natural Moisturi
