COSRX The AHA 2 BHA 2 Blemish Treatment Serum is a 50g formula engineered to deliver dual exfoliating action with targeted blemish-fighting benefits. This expert-developed serum combines 2% AHA and 2% BHA with blemish-fighting actives to gently exfoliate, unclog pores, reduce bacterial growth, and promote clearer skin. The lightweight serum texture absorbs efficiently, delivering effective treatment without heaviness or irritation, making it suitable for acne-prone, oily, and congestion-prone skin types seeking comprehensive care. The AHA BHA blemish technology works synergistically to exfoliate gently, clarify pores, reduce inflammation, minimize breakouts, and promote visible skin improvement with consistent use. The advanced formula is dermatologist-tested and clinically proven, ensuring safety and efficacy without harsh chemicals or unnecessary additives. The concentrated 50g size provides extended application across multiple treatments. Ideal for those seeking professional-grade dual exfoliation with blemish-fighting benefits and proven K-beauty efficacy, this serum delivers visible results. Apply to clean, dry skin morning and evening, allowing full absorption before additional products. Experience visibly clearer, refined skin with reduced blemishes, improved texture, enhanced clarity, and a smooth, revitalized appearance.