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KOREAN PHARMACY

COSRX

AHA/BHA Clarifying Treatment Toner

COSRX's AHA and BHA toner, used in place of the toner step on skin with rough, congested texture. 150 ml.

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$18.99Comparable US listings run $19.00 (4 dated US observations, checked 9 August 2026)
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Suited to
DryDehydratedSensitiveCompromised barrier
Helps with
DehydrationBarrier weaknessRough surface textureUneven tone and dullness

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  • 30-day returns
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  • Dispatched within 2 business days

How it works

An acid toner here does two jobs at once: the surface, and the debris inside a pore, which are different problems and usually two products. This is the clarifying toner in COSRX's line, a thin liquid that goes on with a cotton pad after cleansing, in place of the toner step. It suits skin that reads rough across the forehead and congested around the nose. On the evenings it is used, nothing else exfoliating belongs in the routine, and moisturizer follows once it has settled. Sunscreen the next morning is part of using an acid at all.

Key benefits

  • Glycolic acid (AHA) and betaine salicylate (BHA) sit back to back at entries seven and eight, one formula covering surface texture and pore congestion
  • Allantoin and panthenol close an eleven-ingredient list, the shortest way to cushion two acids in one step
  • Willow bark water and apple fruit water lead the base ahead of plain water
  • COSRX runs its own brand-portal verification: enter the batch number and expiry from your unit on cosrx.com
  • No fragrance, no parfum, no essential oil on the list
  • Sourced for the Korean market, Korean barcode 8809416470030 intact on the box

Key actives

Glycolic Acid

AHA surface care for smoother texture

Betaine Salicylate

gentle BHA-style care for congested pores

Panthenol

vitamin B5 that comforts and hydrates

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COSRX AHA/BHA Clarifying Treatment Toner

COSRX AHA/BHA Clarifying Treatment Toner

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How to use

  1. Use the AHA BHA Clarifying Treatment Toner after cleansing, in place of your toner step, in the evening.
  2. Sweep it over dry skin with a cotton pad, keeping clear of the eyelids and the corners of the mouth.
  3. Wait a minute, then carry on with serum and moisturizer the same evening.
  4. Start at two or three evenings a week. Do not pair it with another acid or a retinoid in the same routine.

Worth knowing

  • This formula carries an active acid, so pairing it with another exfoliant in the same routine is worth spacing out.

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We’re on gram!

Creators trying on authentic Korean skincare routines and products from us.

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COSRX, Korean-market original

AHA/BHA clarifying toner, 150 ml, on Willow Bark and Apple Waters.

Verify your unit when it arrives

Verify your unit when it arrives

Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.

COSRX verifies units itself. Find the verification page on cosrx.com and enter the batch number and expiration date printed on your unit. Read them off the package rather than from us, which is the point.

Source: COSRX FAQ

On the unit itself

  • The Korean-market barcode, unaltered from the retail package.
  • The manufacturer’s batch code, exactly as the maker printed it.

정품Genuine article, Korean-market stock

What professionals say

What professionals say

What skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.

  • As we age, the glue that holds our skin cells together becomes denser, which slows down the natural cell turnover process.

    Samantha Stein, PA-CDermatology physician assistant, Cleveland Clinic
  • Pantothenol is a common ingredient in skin care and hair products I recommend, particularly for people who are prone to dryness.

    Taylor Bullock, MDDermatology resident, Cleveland Clinic

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