Why this product
Whiteheads, rough texture, dullness. The AHA counterpart to COSRX’s popular BHA Blackhead Power Liquid.
What it does: AHA exfoliant. Glycolic acid dissolves dead skin cells on the surface for brighter, smoother texture.
Skin types: Normal, combo, dull skin.
vs The Ordinary: $22 vs $40. The Ordinary’s Glycolic Acid 7% is $8.70 — one of the few Western products that’s actually cheaper. But COSRX’s apple water base is gentler and the pH is better calibrated. For sensitive skin, the extra $13 buys less irritation.
Discussed in an estimated 2,900+ threads on r/AsianBeauty. Most common praise: I alternate this with the BHA version — BHA Mon/Wed/Fri for blackheads, AHA Tue/Thu for texture. My skin has never looked this good.
Active step
Step 5 in your routine. Sign in to add it.
Where in your routine
Why this step exists in K-beauty
BHA goes into pores. AHA works on the surface. If the BHA Blackhead Power Liquid is for blackheads and congestion, this AHA is for dullness, rough texture, and whiteheads. Most people benefit from both — alternated on different nights.
How to use
Key ingredients
Details
Western equivalent
The Ordinary
Glycolic Acid 7% Toning Solution
$40
The Ordinary’s Glycolic Acid 7% is $8.70 — one of the few Western products that’s actually cheaper. But COSRX’s apple water base is gentler and the pH is better calibrated. For sensitive skin, the extra $13 buys less irritation.
The bottom line
COSRX AHA 7 Whitehead Power Liquid is a active that costs $22 for 100ml. It has 2,900+ community discussions on r/AsianBeauty. The Western equivalent (The Ordinary) runs $40 — you save 45%. Best for normal, combo, dull skin skin.