COSRX BHA Blackhead Power Liquid — Efficacy 3.8/5.0, Safety 4.6/5.0 | DemythSkin
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[ DemythSkin Verdict ]
COSRX BHA Blackhead Power Liquid
COSRX

COSRX BHA Blackhead Power Liquid

ExfoliantExfoliation
Efficacy
Solid
3.8 / 5.0
Safety
Safe
4.6 / 5.0
System Verdict
High-evidence BHA workhorse with a minimalist, efficient base—excellent for blackheads if you tolerate salicylates. Efficacy is driven by betaine salicylate in a leave-on format, which can provide meaningful keratolytic and comedolytic action when used consistently, while niacinamide and panthenol offer supporting brightening and barrier benefits rather than being the main actives. The short, humectant-rich vehicle is well-suited to deliver a single focused exfoliant without dilution by gimmicky ingredients, but the overall formula lacks additional anti-inflammatory or buffering lipids that could further improve tolerability at higher use frequencies.
Active Ingredients Detected
A Tier: Good BasicsProven Results
Betaine SalicylateNiacinamidePanthenolSodium Hyaluronate
What Each Ingredient Does
Water
Solvent
Butylene Glycol
Humectant and solvent
Betaine Salicylate
BHA exfoliant and keratolytic
Niacinamide
Skin brightening and barrier support
1,2-Hexanediol
Solvent and preservative booster
Arginine
pH adjuster and humectant
Panthenol
Soothing humectant
Sodium Hyaluronate
Hydrating humectant
Xanthan Gum
Viscosity modifier and stabilizer
Ethyl Hexanediol
Solvent and preservative booster
Full Ingredient List (INCI)

Water, Butylene Glycol, Betaine Salicylate, Niacinamide, 1,2-Hexanediol, Arginine, Panthenol, Sodium Hyaluronate, Xanthan Gum, Ethyl Hexanediol

Frequently Asked

Is COSRX BHA Blackhead Power Liquid worth it?

COSRX BHA Blackhead Power Liquid scores 3.8 out of 5.0 for efficacy (Solid) and 4.6 out of 5.0 for safety (Safe) on DemythSkin's independent ingredient analysis. High-evidence BHA workhorse with a minimalist, efficient base—excellent for blackheads if you tolerate salicylates. Efficacy is driven by betaine salicylate in a leave-on format, which can provide meaningful keratolytic

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 4.6 out of 5.0 for safety.

How is COSRX BHA Blackhead Power Liquid scored?

DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.

Analyze on DemythSkin →

Analysis last updated: 2026-09-04. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.