AHA 7 Whitehead Power Liquid — Reddit Reviews
by COSRX
Updated August 29, 2026
7% glycolic acid exfoliant clears whiteheads fast; irritates sensitive skin.
What the community says
A 7% glycolic acid liquid exfoliant targeting whiteheads and texture that acts fast, often overnight. It's favored by those with acne-prone skin looking for quick results. The trade-off: causes irritation, barrier damage, and stinging in sensitive or eczema-prone users if overused.
What this means for you
What people love
- Clears whiteheads overnight when caught early
- Gentle, hydrating formula with hyaluronic acid
- Widely used for smoothing texture and fading dark spots
Watch out for
- Can cause barrier damage and stinging if overused or misused
- Not safe for sensitive or eczema-prone skin without caution
- Must be used with consistent sunscreen to avoid sun damage
Product details
Skin Type
Key Ingredients
Where to buy
Real Reddit threads — 37 mentions across 29 threads
COSRX AHA 7 Whitehead Power Liquid on Reddit, in one place — 29 threads from r/30PlusSkinCare, r/AsianBeauty and 3 more, summarized.
“CosRX AHA 7. It is the OG of glycolic acids”
Positive
“and doesn’t have that weird smell that the Ordinary toner has”
Positive
“Anyone know (affordable) swaps for the ordinary? Specifically the glycolic acid?”
Positive
“CosRX BHA Blackhead Power Liquid and CosRX AHA Whitehead Power Liquid - Really good at getting rid of whiteheads and sebaceous filaments.”
Positive
“I just got so used to applying these separately (BHA in the AM, AHA every other PM)”
Positive
“Really good at getting rid of whiteheads and sebaceous filaments.”
Positive
“Cosrx AHA Whitehead Power Liquid”
Cautionary
“I [burned with glycolic acid] (hooray - this was before I knew to dilute the AHA Whitehead Power Liquid).”
Cautionary
“It seems to be helping get rid of any flakes I get, especially on my nose/nostrils and eye sockets”
Cautionary
“Cosrx AHA 7 Whitehead power lotion - A little too strong for my skin and i was too liberal with usage.”
Cautionary
“Ruined my skin barrier because of that so it was demoted to body use.”
Cautionary
“it worked WONDERSS on my bacne and dark spots. Cleared it all up, although it still stung like crazy.”
Cautionary
“Products I will be mini reviewing soon:”
Mentioned
“Cosrx AHA 7 Whitehead Power Liquid”
Mentioned
“Till next time~”
Mentioned
“Cosrx AHA 7 Whitehead Power Liquid”
Mentioned
“# 1. Glycolic Acid (AHA)”
Mentioned
“So to find my HG exfoliator, I’ve organized some products I’ve tried or am curious about trying down below by ingredient”
Mentioned
Dupes & Alternatives
Paula's Choice
Skin Perfecting 2% BHA Liquid Exfoliant
Better for Texture / Pores
3 shared traits
685 mentions