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BHA stands for beta hydroxy acid — it's an oil-soluble exfoliant that works inside pores to clear out buildup.
This liquid uses 4% Betaine Salicylate, a gentler form of BHA that dissolves sebum and dead skin cells without being too harsh.
The lightweight, water-like texture absorbs quickly and fits right into your toner step after cleansing.
Suitable for all skin types, but especially helpful if you're dealing with blackheads, clogged pores, or excess oil. It's also a great option if traditional salicylic acid feels too intense for your skin.
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As of July 17, 2026, Bha Blackhead Power Liquid is cheapest at COSRX Official for $22.50.
No price drops in the last 90 days. The all-time low was $17.50 at Cupidrop on April 14, 2026.
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