Twinlab Na-PCA is a PH-balanced, concentrated solution of the sodium salt of pyrrolidone carboxylic acid, a natural moisturizing factor found in human skin. Na-PCA is synthesized from glutamic acid, a nonessential amino acid.
The skin contains natural moisturizers, the most important being Na-PCA. Old skin contains only about half the amount of Na-PCA as that found in young skin. The ability of skin to hold moisture is related to its Na-PCA content. It is water, and not oil, that keeps skin soft and supple. Na-PCA helps keep skin moisturized, improving its appearance and giving it a moist and youthful glow.
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