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COSRX BHA Blackhead Power Liquid ingredients: is it worth it?
A gentle, competent BHA toner—but not a powerhouse blackhead eraser.

A gentle, competent BHA toner—but not a powerhouse blackhead eraser.
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The efficacy score is held to 3.7 because the formula has a real exfoliant (betaine salicylate) plus helpful support ingredients like niacinamide and panthenol, but the overall formula is light, the BHA is a milder salicylate derivative rather than straight salicylic acid, and the ingredient list gives no evidence of a clearly aggressive or optimized acid system for rapid comedone clearing.
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DemythSkin rates COSRX BHA Blackhead Power Liquid 3.7/5 for efficacy and 4.8/5 for safety.
ACTIVE INGREDIENTS BY TIER
Gold Standards
High clinical proof | Skin-transformativeReliable
Proven resultsPotent
Developing evidenceOverhyped | Marketing
Hype | Limited dataDocumented Irritants
Evidence-backed flagFULL INGREDIENT LIST⌄
Water, Butylene Glycol, Betaine Salicylate, Niacinamide, 1,2-hexanediol, Arginine, Panthenol, Sodium Hyaluronate, Xanthan Gum, Ethyl Hexanediol.
WHAT EACH INGREDIENT DOES (10)⌄
- Water
- Solvent, formula base
- Butylene Glycol
- Humectant, solvent
- Betaine Salicylate
- BHA exfoliant, pore unclogging
- Niacinamide
- Barrier support, oil control
- 1,2-Hexanediol
- Humectant, preservative booster
- Arginine
- pH adjuster, skin conditioning
- Panthenol
- Soothing humectant, barrier support
- Sodium Hyaluronate
- Hydrating humectant
- Xanthan Gum
- Thickener, stabilizer
- Ethyl Hexanediol
- Solvent, preservative booster
EXTERNAL CITATIONS
Betaine Salicylate: Cosmetic chemistry literature and clinical use data support BHA-type keratolytic and comedolytic activity for salicylate derivatives, though generally milder than salicylic acid.
Niacinamide: Multiple clinical studies show niacinamide can help reduce sebum appearance and support barrier function over time.
Panthenol: Well-established humectant and soothing ingredient with barrier-supportive benefits.
DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.
COSRX BHA Blackhead Power Liquid: common questions
Is COSRX BHA Blackhead Power Liquid worth it?
COSRX BHA Blackhead Power Liquid scores 3.7 out of 5.0 for efficacy (Modest) and 4.8 out of 5.0 for safety (Very Gentle) on DemythSkin's independent ingredient analysis. A gentle, competent BHA toner—but not a powerhouse blackhead eraser.
What are the key active ingredients in COSRX BHA Blackhead Power Liquid?
COSRX BHA Blackhead Power Liquid contains no gold-standard actives. Its formula is built on supporting and base ingredients rather than clinically transformative actives.
Does COSRX BHA Blackhead Power Liquid contain fragrance or known irritants?
DemythSkin's analysis found no flagged irritants in COSRX BHA Blackhead Power Liquid. It scores 4.8 out of 5.0 for safety.
How is COSRX BHA Blackhead Power Liquid scored?
DemythSkin grades every product on two independent scores: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are graded S through D against a database of over 3,000 compounds. Brand and price are not part of the score, and no brand pays for one.
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