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About the product

What Is It:

There’s a reason why this cult favorite hydrating toner, formulated for combination to oily skin types, is a go-to for anyone looking to attack the causes of acne on multiple fronts. Featuring 60% black bee propolis, known for its antibacterial, antiviral, and anti-inflammatory properties, as well as 1% natural BHA and 1% lactic acid, this toner helps minimize sebum production, defends against the bacteria that causes acne, sweeps away dead skin cells, and calms inflammation and irritation, all while keeping skin hydrated and the skin barrier strong.

Our insight:

Need more help fighting you acne or oily skin woes? Contributing editor Sheryll Donerson explains why she can’t live without the Natural BHA Skin Returning A-Sol here, as well as her favorite oily skin budget buys here. If you’re new to chemical exfoliation and want to learn how to start (safely!), read our exfoliation 101 primer here.

How to use:

After cleansing, saturate a cotton pad and swipe a thin layer of the A-sol over the skin, avoiding the eye and mouth area. For use during the daytime, follow with a broad-spectrum sunscreen rated SPF 30 or greater.


Propolis Extract, Alcohol, Butylene Glycol, Sodium Lactate, Lactic Acid, water, Glycolic Acid, Betaine Salicylate, Sodium Hyaluronate, Panthenol, Allantoin, Cassia Obtusifollia Seed Extract, 1,2-Hexanediol, Ethyl Hexan-ediol, PEG-60 Hydrogenated Castor Oil, Mekakeuca Alternifolia (Tee Tree) Leaf Oil

Brand info:

A true breakout star in the highly competitive world of K-beauty, COSRX’s popularity spread by word-of-mouth through the blogosphere rather than marketing. Founded with the simple mission of good, effective skincare ingredients, as little of the bad stuff as possible, open communication with their customers, minimal marketing, and affordability, COSRX believes in spending their money on ingredients and effectiveness rather than packaging and promotions. To that end, they focus on their ground game, listening to customer feedback to refine and formulate their products and provide better service. From their cult favorite One Step Pimple Clear Pads to their Low pH Good Morning Gel Cleanser, COSRX epitomizes the future of K-beauty.

Reviews & Comments 9


It was the first COSRX item that made my skin turn TOMATO red! I'm assuming that the Lactic Acid that's in this product irritated my skin. I realized that the other COSRX products that I use don't have Lactic Acid and irritate my skin.

BUT, my sister loves this product. She might give this product 5 stars! I've been constantly buying this and the emulsion for her. She said it really helps reduce her acne. This just shows that everyone's skin is different!


I actually really hated this stuff at first, when I was using it as an everyday toner, but over time I've realized that it's just too harsh for my sensitive, dry, acne prone skin to handle on the regular like that. So now I use it as a spot treatment, or on problem areas when I'm having a breakout, and it works great to repair zit damage, slow &/or stop breakouts, and reduce overall inflammation.


I don't use it as a toner but it's an excellent spot treatment for zits. Applied to a spot over 2 nights will heal the thing much faster and reduce signs of inflammation; applied over my nose when my skin is getting a bit uppity, it can halt a breakout in its tracks. Wouldn't use it all over my face because of the alcohol content but as a spot treatment it is great.


That’s really good to know! I just purchased my first bottle and am hoping it will help finally kick a really bad breakout I got after using some incompatible products earlier this summer.


definitely one of my favorite hydrating tonics!! It feels great on the skin and is perfect for all people who struggle with acne. I definitely recommend it


I really like this one! I get this on my face at least once a day just for good measure!! But, it has really performed extremely well on my daughters oily, acne prone skin. I have got to get my spare ordered!! I do not want to run out of this one!


After few months of using it, i'm almost finish with the bottle. I find that it really works heal and soothe my skin whenever i have breakouts. I will continue to use and purchase this.


One of my HG items! I always keep a bottle of this to use when I feel a breakout brewing, before my period, or when I've been extra oily. I love using it in the morning.


This has been a great standby for me during the week before my period when I typically break out like crazy with hormonal acne. I'll switch to using this as my toner, and it will quickly heal up any breakouts that I have.

Jude Chao

I always keep a bottle of this on my bathroom counter! It helps to shrink and heal any pimples I get very quickly and gently. I've also used it as a toner before with good preventative results.