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COSRX BHA Blackhead Power Liquid
🇰🇷 Seoul, Korea
COSRX

BHA Blackhead Power Liquid

$25vs $35 Paula’s Choice

100ml

Key facts★ r/AsianBeauty Holy Grail
Cost per ml$0.25/ml vs $0.70/ml
vs Western equivalent29% less
Key activeBetaine Salicylate (4%)
Community discussions (est.)5,200+
Made byCOSRX Inc., Seoul, Korea
Community consensus5,200+ discussions

Consistently rated Holy Grail across an estimated 5,200+ community discussions on r/AsianBeauty. Most common praise: One of my holiest of holy grail products. It effectively penetrates and cleans up clogged pores without the irritation of Paula’s Choice.

Active step

Fits as step 5 in a K-beauty routine. Sign in to add it to yours.

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Why this step exists in K-beauty

K-beauty approaches exfoliation differently — using betaine salicylate (a gentler BHA derivative) in willow bark water instead of harsh direct salicylic acid. Same pore-clearing results, less irritation.

How to use

WhenPM only (start 2-3x/week)
AmountCoin-sized amount on cotton pad
MethodSweep across face after cleansing. Wait 20 minutes before next step. Start slowly — every other night, then build up.
Before thisCleanser
After thisWait 20 min, then essence/serum/moisturizer

Key ingredients

Betaine Salicylate (4%)Willow Bark Water (67.8%)NiacinamideSodium Hyaluronate
FragranceAlcoholParabens

Details

Routine stepExfoliant · PM only
ActiveBetaine Salicylate 4%
TextureClear liquid
Wait time20 minutes after application
FragranceNone
Ships fromUS warehouse · 2-3 days
Manufactured byCOSRX Inc., Seoul, Korea

Western equivalent

Paula’s Choice

2% BHA Liquid Exfoliant

$35

Save 18% — with gentler BHA

Both are BHA exfoliants. COSRX uses betaine salicylate (gentler) in willow bark water. Paula’s Choice uses direct salicylic acid. Similar results for mild-moderate concerns, with less irritation from the K-beauty approach.