COSRX AC Collection Ultimate Spot Cream is an intensive spot treatment that calms and heals acne and blemishes. Best used at the beginning of breakouts as well as during a breakout. The aloe vera leaf water and calamine the key ingredients that help calm and soothe the area. Zinc oxide is present for excess sebum control, and calamine helps keep the skin soothed. This spot treatment cream can be used to treat stubborn acne and pimples, including cystic acne to help prevent scarring and irritation.