Oil-control astringent helps treat acne and prevent future breakouts and blackheads. It’s also gentle enough to use morning, noon and night, because it won't over-dry or irritate your skin. This maximum strength formula contains Salicylic Acid, an acne-fighting ingredient. It penetrates deep into pores to help remove the dirt, oil and makeup that can cause breakouts. It also instantly eliminates and controls excess surface oil.