COSRX BHA Blackhead Power Liquid is a specialized skincare solution designed to effectively remove oil and deeply cleanse pores while maintaining skin hydration. This dual-action formula works to minimize the appearance of pores while providing essential moisture. This product is a personal care item containing BHA (Beta Hydroxy Acid) that helps exfoliate and cleanse pores. For optimal results, apply after cleansing and toning, using 1-2 pumps on a cotton pad or directly on the skin. Wait 3-5 minutes before applying other skincare products. Best used 1-2 times per week in your evening routine. Avoid using alongside other exfoliators, Vitamin C serums, or retinoids in the same routine.