A silky & light Azelaic Acid derivative (Potassium Azeloyl Diglycinate, or PAD) formula to even the skin tone, normalize oil production and calm the skin. Azelaic Acid is a 3-in-1 clinically proven active that helps reduce blemishes, pigmentation and redness. This formula uses a new-generation water-soluble form called Potassium Azeloyl Diglycinate (PAD) that has similar properties to Azelaic Acid, but enables a super-light, oil-free texture. The two strong points of PAD are to even the skin tone & to control excessive oiliness.