Skip to content
COSRX · Toners

AHA/BHA Clarifying Treatment Toner

$14·150 ml·Leave-on
86
Low concern

Why this score

Concern47 / 55
  • Glycolic Acid: watch if sensitive

How much genuine, cited concern the ingredients carry, weighted by how much of each is likely present and whether the product stays on or rinses off.

Transparency20 / 20
  • No hidden fragrance blend.

Whether the full ingredient list, and any fragrance, are actually disclosed.

Formulation restraint19 / 25
  • 1 known irritant or fragrance-allergen ingredient: Glycolic Acid.

Needless irritant or allergen load for the product type. A clean, purposeful formula scores well without any "free-from" theater.

Scored by PlainBody Editorial against the PlainScore method · Label checked July 2026

What’s inside

WaterGenerally safe

The base most products are built on. It carries the other ingredients and has no safety concern.

Full ingredient details →
Butylene GlycolCommonly feared, low concern

A lightweight humectant and solvent similar in role to propylene glycol, used to carry actives and give lotions a lighter feel. CIR has reviewed it and considers it safe as used in cosmetics.

Full ingredient details →
1,2-HexanediolGenerally safe

A glycol used very widely in Korean and Western skincare as a lightweight humectant, solvent, and gentle preservative-booster, often in place of traditional preservatives. It has a low reported irritation rate at use levels and is graded low concern in published assessments.

Full ingredient details →
Glycolic AcidWatch if sensitive

The smallest and most penetrating alpha hydroxy acid, used to loosen the bonds between dead skin cells for smoother texture and tone. It is a genuine irritant at higher concentrations or low pH, can increase sun sensitivity, and the EU restricts free acid content and requires sunscreen-use wording on labeling.

Full ingredient details →
AllantoinGenerally safe

A soothing, skin-conditioning compound (also found in comfrey root) commonly added to calm and hydrate irritated or sensitive skin. It has a long history of safe use with very low irritation potential.

Full ingredient details →
PanthenolGenerally safe

A soothing humectant that helps skin and hair look conditioned. Very well tolerated.

Full ingredient details →

Lower-concern alternatives

Same category, higher PlainScore.

Cosmetic information for general education, not medical advice. Concern ratings are evidence-graded and cited on each ingredient page. See how we score.