The COSRX AC Collection Calming Liquid Intensive is a fast-acting toner that quickly soothes troubled skin. It is an acne fighting liquid that removes excess oil, clarifies the skin and freshens the complexion. Formulated with Propolis extract to deeply hydrate the skin and Betaine Salicylate (BHA), Glycolic and Lactic Acid (AHA) to heal acne while keeping your pores clean and clear. The COSRX AC Collection is a special skincare line formulated with CentellAC-RX, three ingredients derived from centella asiatica (Asiatic Acid, Asiaticoside, Madecassic Acid), designed specially to heal acne and strengthen sensitive or acne-prone skin.