COSRX – BHA Blackhead Power Liquid 100 ml Highly effective peeling treatment with 4% Betaine Salicylate (BHA) and 67.8% willow bark water: unblocks clogged pores, dissolves blackheads and sebum filaments and ensures a visibly smoother, clearer complexion – gentle enough for regular use. Deep cleansing 4% BHA formula – Betaine Salicylate penetrates pores, dissolves oil plugs and minimizes blackheads without excessive irritation. Pore refinement & sebum control – natural salicylic acid precursor from willow bark clarifies the skin, while niacinamide visually reduces pores and regulates sebum production. Optimized pH ≈ 4.0 – ensures maximum peeling effectiveness while maintaining good tolerability. Moisture & Soothing – Sodium Hyaluronate, Panthenol and Allantoin provide moisture, reduce tension and support the barrier. Minimalist, gentle formula – alcohol-free, perfume-free, paraben-free; cruelty-free and dermatologically tested – suitable for combination, oily, and acne-prone skin. Light essence gel – absorbs quickly and layers easily under serum or cream without pilling. In the evening after cleansing, apply 1-2 pumps to a cotton pad or palms of your hands and gently smooth over your face (avoiding the eye and lip area). Allow to absorb, then apply moisturizer. Beginners should start 1-2 times per week, and if tolerated well, increase to 2-3 times. Always use sun protection during the day (min. SPF 30) to support the effect of the BHA.