AHA/BHA Clarifying Treatment Toner — Reddit Reviews
by COSRX
Updated September 8, 2026
Glycolic and salicylic acids clear pores and texture; can dry skin out.
What the community says
This clarifying toner uses glycolic acid and salicylic acid to exfoliate and improve pores and texture, favored by many and suitable for oily or combination skin. Studies found salicylic acid clears acne as well as prescription options. It can dry or irritate sensitive and eczema-prone skin, so start slow and always moisturize.
What this means for you
What people love
- Effective daily exfoliator with glycolic and salicylic acids
- Clears blackheads, whiteheads, and smooths keratosis pilaris
- Lightweight toner that rarely causes irritation if used wisely
Watch out for
Product details
Use caution
Skin Type
Product Traits
Key Ingredients
Where to buy
What the science says vs. what Reddit says
What the science says
Salicylic Acid
Strong evidence for acne- It usually helped clear acne, though results were sometimes mixed and a few studies only showed it matched other treatments
- 30 studies back this, including large reviews
- It often worked about as well as tretinoin, adapalene, benzoyl peroxide, mandelic acid, Jessner's solution, and some light treatments
- Some studies found it worked better when used with other treatments than when those treatments were used alone
- Side effects were usually milder than with some comparison treatments, with less dryness and fewer side effects overall
What Reddit says
The why
AHA/BHA clarifying toner clears closed comedones and softens skin when used 2-3 times weekly.
“i use it 2-3 times a week and it’s done a great job at clearing out the closed comedones and little white bumps”
7 mentions for acne
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
Real Reddit threads — 71 mentions across 27 threads
COSRX AHA/BHA Clarifying Treatment Toner on Reddit, in one place — 27 threads from r/koreanskincare, r/AsianBeauty and 3 more, summarized.
“I forgot what some of the products I've tried but here are some of what I can remember.”
Mentioned
“COSRX AHA/BHA Clarifying Toner”
Mentioned
“I've also tried other brands from other countries.”
Mentioned
“Right now I have Cosrx AHA/BHA Clarifying Treatment Toner, Cosrx BHA Blackhead Power Liquid, Cosrx AHA 7 Whitehead Power Liquid, and OST C20.”
Mentioned
“I use it after COSRX AHA/BHA Toner.”
Mentioned
“pH adjusting toners lowers the pH of your skin after cleansing, readying it for pH-dependent actives.”
Mentioned
“Cosrx AHA BHA toner, Skin1004 centella, Cerave SA smoothing cream”
Mentioned
“How's it working for u???”
Mentioned
“10/10 products”
Mentioned
“I have been using the CosRX AHA/BHA toner which did not work for my face- way too strong and sensitizing.”
Positive
“It works well for my arms.”
Positive
“Just after 1 application my arms were noticeably smoother.”
Positive
“you can also use widely available cosrx!”
Positive
“I use their aha/bha toner 2-3x/week and it's totally cleared up my KP”
Positive
“I also put it on my butt for a super smooth 🍑”
Positive
“CosRX AHA/BHA Clarifying Toner improved my acne scarring almost immediately”
Positive
“I started using it once every 3 nights or so and now use it every other night.”
Positive
“It does dry your skin a bit so keeping up with moisturizer is important.”
Positive
