COSRX AC Collection Blemish Spot Clearing Serum is for 3 way post-acne care - calming & clearing & recovery. Deep Dive Into Your Skin: Highly concentrated serum which quickly absorbs into your skin and doesn't leave a tacky feeling. Recommend for: Acne prone skin, sensitive skin, oily skin. Key Ingredients: CentellAC-Rx Complex which infused with three ingredients derived from Centella Asiatica: Madecassic acid, Asiaticoside and Asiatic acid. Formulated specifically for problematic skin to leave skin feeling refreshed, soothed, and even-toned.