Formulated with proprietary COSRX Centella AC-Rx Complex, the AC Collection Blemish Spot Clearing Serum not only treats acne, but also helps the skin recover without any irritation. This blemish-clearing serum can be used daily to clear acne and brighten skin. The triple blemish care system works to calm, brighten, and strengthen skin with CentellAC-Rx complex and 4% Niacinamide..Madecassic acid calms and protects, Asiaticoside keeps skin clear, and Asiatic acid strengthens the skin barrier to maintain a balanced complexion.4% Niacinamide brightens and evens skin tone.Ceramides strengthen the skin barrier and boost hydration.1.35 fl oz.Apply an appropriate amount gently to sensitive skin; lightly pat into skin to absorb