BHA Blackhead Power Liquid — Reddit Reviews
by COSRX
Updated August 27, 2026
4% salicylic acid liquid exfoliates pores and blackheads; can cause irritation.
What the community says
A 4% salicylic acid BHA liquid that exfoliates inside pores and clears blackheads, popular especially among combo and oily skin users. Its lightweight, watery texture layers well and is gentle for beginners, though those with sensitive or dry skin may experience irritation or barrier damage. Best used 2-3 times weekly to avoid redness and breakouts.
What this means for you
What people love
- 4% salicylic acid penetrates pores to clear blackheads and texture
- Lightweight, watery texture suitable for layering under moisturizers
- Gentler formula than typical BHAs, favored by sensitive skin users
Watch out for
- Can cause irritation, redness, and breakouts if overused or sensitive
- Dry skin users often find it too drying or damaging to barrier
- Pump packaging is leaky and prone to mess or suction noise
Product details
Concerns
Skin Type
Product Traits
Key Ingredients
Where to buy
Real Reddit threads — 131 mentions across 27 threads
COSRX BHA Blackhead Power Liquid on Reddit, in one place — 27 threads from r/AsianBeauty, r/koreanskincare and 3 more, summarized.
“CosRX BHA Blackhead Power Liquid and CosRX AHA Whitehead Power Liquid - Really good at getting rid of whiteheads and sebaceous filaments.”
Positive
“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
“I used cosrx bha like 3 times a week”
Cautionary
“I took a break from everything in january because my skin started burning with products that never bothered me before”
Cautionary
“cosrx bha blackhead power liquid 3x a week - it broke me out and left my oily skin red and irritated instead of clearing pores”
Cautionary
“cosrx bha blackhead power liquid 3x a week - it broke me out and left my oily skin red and irritated instead of clearing pores”
Cautionary
“took me forever to dial it back”
Cautionary
“from piling on actives”
Cautionary
“If you can’t get Retin A, get Cosrx BHA blackhead power liquid.”
Positive
“Use it 2 or 3 times a week.”
Positive
“Cosrx Blackhead Power Liquid has helped with my nose pores.”
Positive
“(Occasionally) BHA: Cosrx BHA Blackhead Power Liquid followed up by Two in One Poreless Power Liquid”
Positive
“TEMP: just trying to finish this bottle”
Positive
“it does sooth skin and reduce appearance of pores a little”
Positive
“Cosrx Black Power Liquid”
Mentioned
“It must contain BHA”
Mentioned
“I also use skin1004 azaleic acid, but I don't use both at the same time.”
Mentioned
“I do use their Cleanser with 2% salicylic acid, Advanced Snail 96 Mucin Power Essence and the BHA Blackhead Power Liquid, which I always make sure I have on hand.”
Mentioned
“I love these products and my face is better for it.”
Mentioned
“The toner is gold”
Mentioned
Dupes & Alternatives
Paula's Choice
Skin Perfecting 2% BHA Liquid Exfoliant
Better for Texture / Pores
7 shared traits
685 mentions
