Twinlab Na-PCA Non-Oily spray with Aloe Vera keeps skin moisturized, improving its appearance and giving it a moist and youthful glow. 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 directly related to its Na-PCA content. It’s water, not oil, that keeps skin soft and supple. This advanced formula has been combined with the highest quality aloe vera gel.