COSRX BHA Blackhead Power Liquid is a concentrated exfoliating toner that helps minimize the appearance of enlarged pores and brighten the skin. Formulated with 4% BHA (Betaine Salicylate) and willow bark water, it gently removes dead skin cells, clears blackheads, and controls excess sebum without irritation. With a mildly acidic pH of 4.85–5.1, it supports a healthy skin barrier. This vegan and cruelty-free formula is also free from parabens, sulfates, artificial colors and fragrances, animal-derived ingredients, alcohol, mineral oil, essential oils, and silicone.