Blackheads out, clear pores in. This chemical exfoliator liquid for mid-level acid users is formulated with 4% betain salysilate (BHA) and 68% natural white willow bark with 2% niacinamide to provide gentle exfoliation and oil control on non-inflammatory blackheads around the T-zone and butterfly zone. Made 100% cruelty-free. South Korean skincare label COSRX focuses on clinical results through nature and science.