Geek & Gorgeous aPAD Serum is a silky & light 20% Azeclair Serum with a potent Azelaic Acid derivative to normalize oil production, even the skin tone & calm the skin. Azelaic Acid is a 3-in-1 clinically proven active that helps reduce blemishes, pigmentation and redness. The two strong points of PAD are to even the skin tone and to control excessive oiliness. The formula has 20% Azeclair, the molecule is effective already and typically used at 1-3%. Normalizing oil production and evening the skin tone. 5% PAD is great for management of rosacea.