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COSRX AHA vs. BHA: Which One Do You Need?

Wondering whether you need the COSRX AHA 7 Whitehead Power Liquid or the BHA Blackhead Power Liquid? Both are cult-favorites, but they target different concerns. AHA smooths rough texture and fades whiteheads, while BHA unclogs pores and tackles blackheads. In this guide, we compare their benefits, show you how to use them, and help you decide which exfoliant belongs in your routine.