AHA/BHA Clarifying Treatment Toner
AHA/BHA Clarifying Treatment Toner
Product Description
Product overview
A gentle, daily-use exfoliating toner with 0.1% Glycolic Acid (AHA) and 0.1% Betaine Salicylate (BHA) that helps remove dead skin cells, control pores, and prep skin for better absorption of subsequent skincare products. Perfect for beginners to chemical exfoliation.
10% Apple Fruit Water
Natural AHA source that gently exfoliates while providing vitamins and antioxidants for healthier-looking skin.
Texture & feel
SENSORY10% Apple Fruit Water
Natural AHA source that gently exfoliates while providing vitamins and antioxidants for healthier-looking skin.
10% Willow Bark Water
Natural BHA source with soothing properties that helps control excess oil and calm irritation.
Spray Bottle Design
Convenient mist application allows for easy use as a toner or refreshing facial mist throughout the day.
pH-Adjusting Toner
Low pH formula (3.85-4.0) preps skin for better absorption of subsequent actives like vitamin C and retinol.
Safety & compatibility
SAFEThe brand recommends avoiding this product during pregnancy and breastfeeding due to the AHA/BHA content. Consult your healthcare provider.
This formula contains no fatty acids, oils, esters, polysorbates, or fermented ingredients that feed malassezia yeast.
Oil-free, lightweight formula with a comedogenic rating of 0/5. Will not clog pores or cause breakouts.
AHAs can increase sun sensitivity. Always apply SPF 30+ sunscreen during daytime when using this product.
Passed Human Repeat Insult Patch Test (HRIPT) on 53 subjects. Hypoallergenic and dermatologist tested.
Avoid using simultaneously with other AHAs, BHAs, retinols, or vitamin C. Alternate usage for best results.
Ingredient breakdown
INGREDIENTSGlycolic Acid 0.1%Proven
The most researched and well-known AHA exfoliant. At this low concentration, it works as a gentle exfoliant and pH adjuster rather than an intensive peel.
- Function: Breaks down bonds between dead skin cells for gentle exfoliation
- pH Dependent: Works best at pH 3-4 (this product: 3.85-4.0)
- Molecular Size: Smallest AHA molecule for better penetration
Betaine Salicylate 0.1%Promising
A gentle BHA alternative combining salicylic acid with moisturizing betaine. Popular in K-beauty due to South Korean regulations limiting pure salicylic acid use.
- Function: Oil-soluble exfoliant that penetrates pores to remove sebum
- Optimal pH: Most effective at pH 3.8-4.2 (matches this formula)
- Gentleness: Less irritating than pure salicylic acid, ideal for sensitive skin
Pyrus Malus (Apple) Fruit Water 10%Natural
Natural source of alpha hydroxy acids derived from apples. Provides gentle exfoliation while delivering vitamins and antioxidants.
- Source: Natural fruit water containing malic acid (an AHA)
- Benefits: Hydration, vitamins, and mild exfoliation
- Skin Feel: Refreshing and non-irritating
Salix Alba (Willow) Bark Water 10%Natural
Natural extract rich in salicylates, the precursor to salicylic acid. Known for soothing and mild exfoliating properties.
- Source: White willow bark, a natural salicin source
- Properties: Anti-inflammatory, soothing, mild exfoliation
- Traditional Use: Used for centuries for skin-soothing benefits
Panthenol (Pro-Vitamin B5)Proven
A well-researched moisturizing and skin-conditioning ingredient with wound-healing and anti-inflammatory properties.
- Function: Humectant that attracts and retains moisture
- Benefits: Soothes irritation, supports skin barrier repair
- Safety: Extremely well-tolerated by all skin types
AllantoinProven
A super common soothing ingredient that helps calm and protect the skin. Often added to products with active ingredients to reduce potential irritation.
- Function: Skin-soothing and protective agent
- Benefits: Promotes wound healing, reduces irritation
- Source: Found naturally in comfrey plant, usually synthetic in cosmetics
11 ingredients
Water, Salix Alba (Willow) Bark Water, Pyrus Malus (Apple) Fruit Water, Butylene Glycol, 1,2-Hexanediol, Sodium Lactate, Glycolic Acid, Betaine Salicylate, Allantoin, Panthenol, Ethyl Hexanediol
Where it fits in your routine
ROUTINEApply immediately after cleansing to lower skin pH and prep for actives. Follow with SPF 30+ in the morning.
How to use
HOW TO USECleanse Your Face
Start with clean, freshly washed skin. Pat dry gently with a clean towel.
Apply to Cotton Pad
Spray the toner onto a cotton pad until saturated. Alternatively, spray directly onto hands.
Gently Wipe Face
Sweep the cotton pad across your face and neck, avoiding the eye and mouth area. Pat gently for better absorption.
Continue Routine
Follow with your serum, moisturizer, and sunscreen (AM). Can be used morning and/or evening.
Who is it for?
WHOPerfect for you if:
- You're a beginner to chemical exfoliation
- You want a gentle, daily-use exfoliating toner
- You need to prep skin for pH-dependent actives
- You have oily or combination skin with clogged pores
- You want a minimal, effective ingredient list
- You have fungal acne (malassezia)
- You prefer fragrance-free products
Consider alternatives if:
- You're pregnant or breastfeeding
- You need strong, intensive exfoliation
- You want visible peeling/dramatic results quickly
- You're already using multiple acids or retinol daily
- You have extremely dry, dehydrated skin
- You're looking for anti-aging benefits
Skin type compatibility
SKIN TYPESLightweight, oil-free formula helps control sebum and keep pores clear without adding shine.
Balances oily T-zone while being gentle enough for drier cheek areas. Perfect all-over use.
Low acid concentration (0.1%) and soothing allantoin/panthenol make it gentle. Patch test first.
Non-comedogenic, fungal acne safe, and helps prevent blackheads/whiteheads with daily use.
May feel slightly drying for very dry skin. Follow with hydrating toner and rich moisturizer.
Concentration too low for significant anti-aging effects. Consider higher % AHA products instead.
Results timeline
ONGOING USESkin Feels Smoother
Initial smoothing effect as dead skin cells are gently removed. Skin may feel slightly more refreshed after cleansing.
70% noticed smoother textureImproved Skin Clarity
With consistent daily use, pores appear cleaner and skin looks more balanced. Fewer small bumps and congestion.
65% reported clearer poresBrighter, More Even Tone
Continued gentle exfoliation reveals fresher skin cells. Some improvement in skin radiance and overall texture.
55% noticed brighter complexionMaintenance Results
Best used as a maintenance product to keep pores clear and prep skin for other actives. Not designed for dramatic transformation.
80% repurchase rateRatings by platform
23K+ REVIEWSPros & cons
BALANCEDPraised
- Extremely gentle - perfect for sensitive skin and beginners
- Minimal, clean ingredient list (only 11 ingredients)
- Fungal acne safe formula
- Fragrance-free and alcohol-free
- Convenient spray bottle design
- Great for daily use without irritation
- Affordable K-beauty option
- Helps prep skin for other actives
Criticized
- Acid concentration too low for visible exfoliation
- Not effective for stubborn acne or hyperpigmentation
- Spray nozzle can be finicky
- May cause stinging for very sensitive users
- Not suitable during pregnancy/breastfeeding
- Some find it too watery/light
- Results take time and are subtle
Budget-friendly alternatives (dupes)
DUPESStronger 7% glycolic acid for more noticeable exfoliation. Larger 240ml size. Better value but may be too strong for sensitive skin. Contains fragrance.
Higher AHA concentration with hydrating ingredients. Essence texture vs. toner. Better for those wanting stronger exfoliation with hydration.
Similar pH-adjusting concept but contains alcohol. Comparable price and size. Some users find it more effective but potentially more drying.
Comparison with competitors
SIDE-BY-SIDEStorage & shelf life
12 MONTHS12 months after opening
Store in a cool, dry place away from direct sunlight and heat. Keep cap tightly sealed after use.
Plastic spray bottle with mist nozzle for easy, hygienic application
Yes, 150ml is over TSA limit but can be decanted. Spray bottle design is leak-resistant.
Frequently asked questions
FAQNo. COSRX officially recommends avoiding this product during pregnancy and breastfeeding. While the AHA/BHA concentrations are very low (0.1% each), the brand takes a cautious approach. Consult your healthcare provider for personalized advice on safe skincare during pregnancy.
Yes! This toner is fungal acne safe. It contains no fatty acids, oils, esters, polysorbates, or fermented ingredients that feed malassezia yeast. The minimal 11-ingredient formula is free from common fungal acne triggers, making it an excellent choice for those prone to pityrosporum folliculitis.
COSRX recommends NOT using this toner simultaneously with other acids (AHAs, BHAs), retinols, or vitamin C to avoid over-exfoliation and irritation. Instead, alternate usage - for example, use this toner in the morning and retinol at night, or use vitamin C on different days. If you want to layer, wait at least 20-30 minutes between products.
This toner is excellent for oily, combination, and acne-prone skin types due to its oil-free, non-comedogenic formula. It's also suitable for sensitive skin beginners to chemical exfoliation thanks to the very low acid concentrations (0.1%). Those with very dry skin may find it slightly drying and should follow with hydrating products. Not ideal for mature skin seeking strong anti-aging effects.
Due to the gentle, low-concentration formula, results are subtle and gradual. Most users notice smoother skin texture within 1-2 weeks. Improved clarity and reduced congestion typically appear around weeks 3-4 with consistent daily use. Don't expect dramatic peeling or overnight transformation - this is a maintenance product, not an intensive treatment.
Apply immediately after cleansing (double cleanse if wearing makeup/sunscreen). This toner should be used before any other toners, essences, serums, or moisturizers. Its low pH (3.85-4.0) helps prep your skin for better absorption of subsequent products and makes pH-dependent actives work more effectively. Always finish with sunscreen in the morning.
No, this toner has a comedogenic rating of 0/5. It's oil-free, silicone-free, and contains no pore-clogging ingredients. In fact, it's designed to help prevent clogged pores by gently exfoliating dead skin cells and excess sebum. It's safe for acne-prone skin and won't cause breakouts.
The product has a PAO (Period After Opening) of 12 months. Store in a cool, dry place away from direct sunlight to maintain potency. The 150ml bottle typically lasts 2-3 months with twice-daily use. If you notice changes in color, smell, or texture before 12 months, discontinue use.
Verdict: The COSRX AHA/BHA Clarifying Treatment Toner is an excellent entry-level exfoliating toner that prioritizes gentleness over dramatic results. With only 0.1% of each acid, it's more of a pH-adjusting prep toner than a true exfoliant. Perfect for beginners, sensitive skin, and those seeking a minimal, fungal acne-safe formula. However, if you want visible exfoliation, skin brightening, or anti-aging benefits, you'll likely need a product with higher acid concentrations. Best used as a daily maintenance step to keep pores clear and enhance the effectiveness of your other actives.
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Product Overview
Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.
Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.
Quick Product Notes
Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging «promises» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.
We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.
Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.
Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you
Notable Effects & Ingredients
Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.
We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.
A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.
One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!
Ingredients Related to Skin Types
Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.
EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.
Ingredient Safety Breakdown
Product ingredient list
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
| 1 |
Water
Solvent, Skin Conditioning
|
|
|
| 0 |
Salix Alba Bark Water
Astringent, Skin Conditioning, Soothing, Tonic
|
Irritation
Texture
|
|
| 0 |
Pyrus Malus Fruit Water
Masking
|
|
|
| 1 |
Butylene Glycol
Solvent, Skin Conditioning, Masking, Fragrance, Humectant, Viscosity Controlling, Viscositydecreasing Agent
|
Hydrating
|
|
| 1 |
1,2-Hexanediol
Solvent, Skin Conditioning
|
Hydrating
|







