COSRX Refresh AHA/BHA Vitamin C Daily Toner — Efficacy 3.7/5.0, Safety 4.6/5.0 | DemythSkin
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[ DemythSkin Verdict ]
COSRX Refresh AHA/BHA Vitamin C Daily Toner

COSRX Refresh AHA/BHA Vitamin C Daily Toner

TonerBrightening
Efficacy
Basic
3.7 / 5.0
Safety
Safe
4.6 / 5.0
System Verdict
Decent gentle-toner concept, but the acids and vitamin C are likely too weakly dosed to be more than a mild skin-refresher. The formula uses fruit waters (apple, willow bark) plus low-listed glycolic acid, betaine salicylate, and ascorbyl glucoside, which almost certainly sit at low percentages and at a non-aggressive pH, so you’ll get subtle smoothing and brightening over time but nowhere near the impact of a dedicated AHA/BHA or vitamin C serum; niacinamide, humectants, and soothing agents help skin tolerance and justify a moderate (not high) efficacy score.
Active Ingredients Detected
S Tier: Gold StandardsHigh Clinical Proof | Skin-Transformative
Glycolic Acid
A Tier: Good BasicsProven Results
NiacinamideSodium LactateWaterAllantoinPanthenolAdenosineBetaine SalicylateAscorbyl Glucoside
B Tier: Supporting IngredientsPromising Ingredients
Salix Alba (Willow) Bark WaterPyrus Malus (Apple) Fruit WaterButylene Glycol1,2-HexanediolEthyl Hexanediol
C Tier: Marketing IdolsHype | Limited or Weak Data
Actinidia Chinensis (Kiwi) Fruit ExtractHylocereus Undatus Fruit Extract
What Each Ingredient Does
Actinidia Chinensis (Kiwi) Fruit Extract
Botanical extract, mild antioxidant
Hylocereus Undatus Fruit Extract
Dragon fruit extract, antioxidant
Salix Alba (Willow) Bark Water
Source of salicylates, gentle keratolytic
Pyrus Malus (Apple) Fruit Water
Apple water, very mild AHA source
Butylene Glycol
Humectant and solvent
Niacinamide
Brightening, barrier-supporting active
1,2-Hexanediol
Solvent and preservative booster
Ethyl Hexanediol
Solvent, texture enhancer
Sodium Lactate
Humectant and buffering agent
Water
Solvent, formula base
Glycolic Acid
AHA exfoliant for texture
Allantoin
Soothing, skin-protective agent
Panthenol
Humectant, soothing provitamin B5
Adenosine
Soothing, anti-wrinkle signaling molecule
Betaine Salicylate
BHA-type exfoliant, pore care
Ascorbyl Glucoside
Stable vitamin C derivative, brightening
Full Ingredient List (INCI)

Actinidia Chinensis (Kiwi) Fruit Extract, Hylocereus Undatus Fruit Extract, Salix Alba (Willow) Bark Water, Pyrus Malus (Apple) Fruit Water, Butylene Glycol, Niacinamide, 1,2-Hexanediol, Ethyl Hexanediol, Sodium Lactate, Water, Glycolic Acid, Allantoin, Panthenol, Adenosine, Betaine Salicylate, Ascorbyl Glucoside

Frequently Asked

Is COSRX Refresh AHA/BHA Vitamin C Daily Toner worth it?

COSRX Refresh AHA/BHA Vitamin C Daily Toner scores 3.7 out of 5.0 for efficacy (Basic) and 4.6 out of 5.0 for safety (Safe) on DemythSkin's independent ingredient analysis. Decent gentle-toner concept, but the acids and vitamin C are likely too weakly dosed to be more than a mild skin-refresher. The formula uses fruit waters (apple, willow bark) plus low-listed glycolic acid, betaine salicy

What are the key active ingredients in COSRX Refresh AHA/BHA Vitamin C Daily Toner?

COSRX Refresh AHA/BHA Vitamin C Daily Toner contains these gold-standard actives with strong clinical evidence: Glycolic Acid.

Does COSRX Refresh AHA/BHA Vitamin C Daily Toner contain fragrance or known irritants?

DemythSkin's analysis found no flagged irritants in COSRX Refresh AHA/BHA Vitamin C Daily Toner. It scores 4.6 out of 5.0 for safety.

How is COSRX Refresh AHA/BHA Vitamin C Daily Toner 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: 2026-05-15. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.