
COSRX Bha Blackhead Power Liquid 4% (Discontinued)
The COSRX BHA Blackhead Power Liquid is a legendary chemical exfoliant designed to target deep-seated impurities and congestion within the pores. Formulated with 4% Betaine Salicylate—a gentler, more hydrating alternative to traditional Salicylic Acid—this liquid effectively dissolves excess sebum and dead skin cells that lead to blackheads and stubborn breakouts. Instead of plain water, the formula uses Salix Alba (Willow) Bark Water as its base to provide additional soothing benefits and natural exfoliating properties. The inclusion of Niacinamide helps to brighten the complexion, regulate oil production, and refine the appearance of enlarged pores over time. The texture is a lightweight, slightly viscous liquid that glides onto the skin and absorbs quickly without leaving a greasy or sticky residue. Although this specific 4% formulation is discontinued, it remains a benchmark for gentle yet effective pore care, offering a non-irritating solution for those looking to achieve a smoother, clearer skin texture without the harshness often associated with high-strength acid treatments.
Our Analysis
Our analysis of the COSRX BHA Blackhead Power Liquid confirms a Low comedogenic risk level, making it a highly compatible choice for those with acne-prone skin. We found zero flagged ingredients in this formulation, meaning it is free from common pore-cloggers like heavy oils, waxes, or thickeners. The formula relies on a clean, minimalist ingredient list that prioritizes pore-clearing actives like Betaine Salicylate. By avoiding ingredients known to trigger breakouts, this product effectively purges the pores of debris without the risk of causing new blockages, ensuring a safe experience for reactive skin.
Skin Type Recommendations
This liquid is best suited for oily, combination, and acne-prone skin types struggling with congestion and blackheads. Its gentle formulation is also an excellent choice for sensitive skin types that find traditional BHAs too drying. Dry skin types should follow up with a rich moisturizer to maintain hydration during exfoliation.
Flagged Ingredients
This product does not contain known high-risk comedogenic ingredients.
Want Deeper Analysis?
Run our MACR (Multi-Axis Comedogenic Risk) analysis to get a comprehensive 5-axis risk assessment. This AI-powered analysis evaluates ingredients for Plugging Risk, Barrier Damage, Fungal Acne Risk, Oxidation Risk, and real-world User Reports — giving you personalized scores for your skin type.














