|REVIEW| COSRX AHA BHA Clarifying Treatment Toner Review

COSRX AHA BHA Clarifying Treatment Toner review

Remember my Hermo.my review? I've mentioned to you the COSRX sample I received as a surprise from Hermo.my. This time, it's not just a sample because I bought myself almost the whole skincare line from COSRX! Let me show you what I actually bought...

CosRx AHA BHA Clarifying Treatment Toner review Cosrx review
I posted a square version of this on Instagram and COSRX itself commented because they thought I was a seller. HAHA! Note: I'm not.

Heh, enough with the showing off. Today, I want to share with you the COSRX AHA BHA Clarifying Treatment Toner! Oh yes, my first COSRX review and it is on this amazing toner. I got this toner while it was on a buy-three-free-one sale on Hermo.my during Christmas. It was my craziest purchase because for the first time I spent close to RM200 on Hermo.my! My first RM200 given to COSRX and I don't regret it. 

CosRx AHA BHA Clarifying Treatment Toner review Cosrx review
COSRX AHA/BHA Clarifying Treatment Toner (RM49 for 150ML)

Since this is my first post on COSRX, I will do a short introduction. 

If you are having trouble pronouncing the name, COSRX is pronounced as Cos + R + X. The Cos stands for cosmetics whereas Rx is a common medical abbreviation that could either mean 'prescription' or 'treatment'. It is the sister brand of C20 (the vitamin C serum!) and Ciracle. All COSRX products have this minimalist look and that is their signature. On their website, they even went on to claim that their products are "not tempting and good-looking cosmetics"! A main focus of COSRX is on creating products with little to no harmful ingredients while containing tonnes of good components. COSRX also prices itself much lower than its competitors! This is good news to all of us who want to try out some AHA or BHA products but don't want to break the bank for Paula's Choice! 

I'm going to do a whole series of reviews on COSRX in view of its 1st birthday! So, follow me on Bloglovin' using the black button on your left (that's ← side, you need to scroll up a little) to keep yourself posted on all upcoming COSRX reviews! 

AHA stands for alpha hydroxy acid and guess what BHA is? Yes! It is beta hydroxy acid i.e. the infamous salicylic acid. AHA is a common skincare product ingredient and it is commonly used in chemical peels. You may have recognised salicylic acid if you are a fan of acne fighting products! You are right! It is almost always the featured ingredient because it has the ability to dry out acne and shrink it down! AHA mainly exfoliates the surface skin tissue as opposed to BHA, which penetrates more deeply down the skin. Both AHA and BHA are frequently used to make anti-aging products because they have the ability to erase fine lines (which we all despise!). 

COSRX AHA BHA Clarifying Treatment Toner review

It may sound a little 'aggressive' to some of you to use AHA or BHA in the toner step. But do you recall my review on the AHA Cleansing Wash by Cleansing Research? I already have AHA in my cleansing routine and I'm not afraid to go a mile further! Although this would depend on your skin type and how sensitive your skin is. You may need to do patch tests before you proceed to apply it on your whole face. I strongly encourage you to do so with every new product that you are planning to use!

This time I want to show you the ingredient list before I say more.


Mineral Water, Salix Alba (Willow) Bark Water (BHA), Pyrus Malus (Apple) Fruit Water (AHA), Butylene Glycol, 1,2-Hexanediol, Sodium Lactate, Glycolic Acid, Water, Betaine Salicylate, Allantoin, Panthenol, Ethyl Hexanediol
Because, this is by far the shortest ingredient list I've ever read! Featuring only 12 products, 10 if you leave out mineral water and water, I think COSRX truly stands by its words. Although if you have seen an even shorter ingredient list, go ahead and post it in the comment section below to wow us! 

Patient, pretty. Packaging first.

COSRX AHA BHA Clarifying Treatment Toner review

COSRX AHA BHA Clarifying Treatment Toner review

The toner comes in the simplest design you can think of. With a spraying nozzle, I would give it a 10/10 because it is hygienic but, there's always a but. When it comes to the last few days of its life, the solution will usually get stuck at the bottom. At this time it needs to be opened up if you don't want to just dispose of it. Who would do that anyway! This can however easily lead to overusing the product (and speeding up its death!) but nothing is perfect right? The nozzle actually sprays out very fine mist (picture above) and it is absolutely amazing! I could feel the tiny particles being absorbed into my skin much more effectively compared to my old toner. This is essential because the next product I put on (usually a CosRx product too!) is often quite heavy and I need something that does not add on to the 'weight'. Always a challenge to do my 10-step properly under Malaysia's weather, you need the right products! 10-step believers, you get what I mean.

The solution is watery. Very watery. I feel like I'm just putting water on my face. It makes sense because the number one ingredient on that list above is Mineral Water. Just how much of it is Mineral Water? No idea. It has no smell, no taste (heh, I 'accidentally' licked it. How? You don't want to know.) and no.. oh wait that's it. It has a pH of 3.9 according to Wishtrend which is surprisingly not that strong on my skin. Didn't know our skin can tolerate such low pH (our skin pH is about 5.5)! 

Don't use cotton pad to apply this CosRx AHA/BHA Clarifying Treatment Toner. I figured that would waste more product than just spraying it on my face after doing trials for the first few days. And I forgot to mention, I've used the product for five months now to be confident enough to share my two cents with you. I just want to give the best to you! :D

COSRX AHA BHA Clarifying Treatment Toner review

I include this in my AM routine because I'm always in a rush in the morning. It is quick to use, just spray-pat-spray-pat-spray, and I don't need to stop to look at the yellow stain on the cotton pad (OCD woo, hands up if this is you). And like I said, it absorbs quick enough for me to layer on a second product without having to wait too long. At night, I'll stick to my COSRX One Step Pimple Clear Pad to keep myself happy that my skin is 100% clean. 

I feel that this COSRX AHA BHA Clarifying Treatment Toner doesn't do much to my skin on its own, whiteheads stay white and blackheads stay black. But it complements the products I use afterwards. I can't explain how but it really helps with the absorption of the products I put on later. I do feel that on days when I skip this toner, my skin reacts less favourably to my acids products (poorer/slower absorption). Am I being self-conscious? Or is it my beauty conscience blaming me for not following my routine? I do not know (I know now, read the UPDATE below). But I highly recommend this toner if you plan on adding acids or any vitamin products to your routine. It assists absorption and is not heavy at all on your skin.

The reason my skin absorbs better is because this toner lowers my skin pH sufficiently to keep the acids/actives in their uncharged, free acid form that allows them to pass through the oily layer (stratum corneum) of our skin more easily. OMG, all the chemistry and biology knowledge that I've long dumped away! I don't want to go too deep here because I can keep on typing for another day and I won't even be done. So if you're interested, you can read more here.

Another important point I almost missed out: I have not broken out once from using the toner. :3

This post contains affiliate links.

Where to get the COSRX AHA BHA Clarifying Treatment Toner:

Malaysia only

Hermo - RM51.94
*WM: RM6.80 / Buy two free shipping
*EM: RM12 / Min. purchase of RM150 for free shipping

You can use Shopback to save some money (save 2% for every purchase) when buying from Hermo. Just sign up using my link: https://www.shopback.my/hermo?raf=OxeI66, and you'll be rewarded with RM5 immediately, followed by RM5 when you make your first purchase on Hermo through Shopback. That's RM10 in total. It works in the form of cash back which you can cash out to your bank account. You'll can learn more on their website here.


Amazon - USD11.04 (approx. RM44)
*Free shipping

Wishtrend - USD16 (approx. RM63)
*Free Shipping with purchases over USD69.00 (ships worldwide)

However if you happen to select a product from Wishtrend’s Free Shipping Product Selection, you are eligible for Free Shipping even if you are buying less than USD69.00! Remember to save your welcome and order emails from Wishtrend because they may have discounts and free shipping codes specially for you. Let them help you save even more money on your next order!

Also, keep in mind their friend-referral program! You can get a USD5 discount coupon if you use my invitation code 1016642104 upon registration. You will receive this voucher right after. There will be a specific field in your registration form called "Friends Invitation Program" where you can put in the code above. This way you can get USD5 off on your first purchase! What better way to save money? Remember to share this awesome deal with your friends too because sharing is caring!

If you are still on the fence, don't be shy and shoot me questions below. I like questions and comments (and subscribers)! Tell me if you would buy it!

*Follow me on Bloglovin' to get updated COSRX reviews when they are up!*

Thank you for reading, see you in the next post!

For the affiliate links: If you use my link, I can earn some commission and it won't cost you any extra money. You don't have to use my link, but if you do, it would really help my blog!
The review is 100% my personal opinion of the product after personally trying it out. Please make sure you consult whoever is selling you the product and ask for samples if you can! Read my disclaimer here.


  1. oohhh... I'm loving the contents of your blog! Bloglisted! :D

    Mira | Pretty Little Things

  2. By the way, what camera do you use? the photos look so pretty and sharp!

    1. Awww you made my day hahaha I always thought my photos are not sharp enough haha. I use Nikon D3200 with a tripod. :)

  3. MiSSHA Near Skin Simple Therapy Mist Toner actually has less ingredients, ahaha! But I'm trawling through blog reviews to try and find something to replace it when i run out and give me more obvious benefits without irritating. I'm open to suggestions!

    1. Hello Task Manager! LOL. I actually think this toner is not for anyone because of its low pH. I've heard cases of people's skin not adapting to it quite well. So if you want to be safe, I'd recommend swanicoco ac clear toner. Haha I tried it once and I love how it softens my skin. It feels so soft and smooth and I've never tried toner like that. My review is here: http://yanrula.blogspot.com/2017/06/review-swanicoco-ac-control-care-skin-toner.html if you're interested haha

    2. Correction: not for everyone* COSRX is going to hate me for saying anyone lol

  4. Hello, when I use this after cleansing, should I wait 20 minutes until I use my Cosrx BHA Power Liquid or if I use this toner I don't have to wait anymore? Because from what I've researched, if you use a different toner (not PH adjusting), you need to wait 20 mins for your skin to go back to the right PH.

    1. Hello Julian, I'm terribly sorry for the late response! Yes you can use the power liquid straight away without waiting since this is pH adjusting toner that prepares your skin for the power liquid. :)

  5. A little warning for those buying it!
    What I discovered this product is that its efficiency also depends on the cleansing product you use before applying the toner. At first my skin recovered very well after a terrible acnee, but then I switched to a mouse type product for daily cleansing from Nivea(not sure what it's called) and my cheeks were filled again with pimples in a matter of days. Since I used both separately and they worked great, I guess it was the combining that caused the break out. It's almost healed now but it's a pitty that I ruined all the work that the toner did before that:((

  6. Dear Yanrula,
    You mentioned that it is reccommended to use this toner prior using acids or vitamins. I've been using the Drunk Elephant Vit C on my morning routine and the Sunday Riley Good Genes on nightime routine. Do you think i can add this Cosrx toner prior using those product on each routine, i mean will they contradict one another because the SR Good Genes is quite a strong acids.

    I really hope you can enlighten me, thank you so much

    1. Hello Farah! It should be okay to use an acidic toner but I think it'd be better to go for a milder acid toner because this COSRX toner is slightly more acidic. Maybe you can check out Mizon AHA & BHA Daily Clean Toner, which is milder. You'd want to do patch testing before putting it on your face to see if your skin is able to take it. :)

      Hope that helps!

    2. thank you so much for your feedback and suggestion dear. I will read more about the mizon one..thanks!

    3. Hi Farah, I don't think you should mixed AHA/BHA with Vitamin C. You can refer to this video by wishtrend https://www.youtube.com/watch?v=6B9Y0fUirZ8

    4. Yeap, that’s true. But vitamin C is a pH dependent acid and an acidic toner (which is not AHA nor it is BHA) is very useful in preparing the skin and getting it ready to absorb the Vitamin C that you put on after as it acts as a pH adjuster for your skin. Thank you!

  7. Hello! Your review is sooo reliable and honest. :) i love reading it. Do you need go ease up to this like apply it once a week then gradually build it up? I tried the blackhead liquid and toner and I purged like crazy. Maybe bec i dove into it like once a dag bec i was so impatient. I had to take tretinoin to calm my face. But i want to reintroduce them again after my face forgives me.

    1. Thank you so much Carla! It's better to gradually build it up to prevent your skin from being overly sensitised by the acid. Start with every 2 days and then build it up to every 1 day once your skin has got used to it. :) Hope this helps!

  8. "WM: 6.8 RM" (buy two free shipping)

    What is WM? 😂 I'll prefer buy from it if it provides free shipping haha

    1. WM stands for West Malaysia :)

  9. Hi!! Is COSRX product suitable for people who has oily skin ?


Hello! Thank you for taking the time to read this post and for leaving a comment too! You have just made my day! <3
Make sure to check back as all comments are read and replied to with much appreciation. :D