• Sorry, this product is available only for international customers at this time. Shop USA products

About the product

What Is It:

COSRX AHA 7 Whitehead Power Liquid is a 7% glycolic acid treatment that gently exfoliates, revealing a more radiant, even-toned complexion with less blackheads and whiteheads. Gentle enough for even irritated and sensitive skin, this treatment sweeps away dead skin cells with apple fruit water, which has natural AHAs, and glycolic acid to boost skin cell turnover. Niacinamide brightens skin tone, while hyaluronic acid draws moisture into the skin. Great for skin that has sun damage, blemishes, or dryness.

Our insight:

Check out Soo’s review here :

How to use:

After cleansing, saturate a cotton pad and swipe a thin layer of the liquid over the skin, avoiding the eye and mouth area. Recommended for nighttime use. If you’re using during the daytime, follow with a broad-spectrum sunscreen rated SPF 30 or greater.
* Start using the product once a week and slowly increase to 2-3 times a week once skin has adjusted.
* On days you use this product, do not use other exfoliating products with a high concentration of AHA, BHA, retinol, or vitamin C.


Pyrus Malus (Apple) Fruit Water, Butylene Glycol, Glycolic Acid, Niacinamide, Sodium Hydroxide, 1,2-Hexanediol, Panthenol, Sodium Hyaluronate, Xanthan Gum, Ethyl Hexanediol

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 13


This was far more effective than the Cosrx Blackhead Power Liquid! This is a great AHA that works and is gentle at the same time. But, oh my goodness, the smell. It smells terrible. I've been told that if an AHA smells terrible, then you know it's the real thing. I'm a little conflicted as to whether or not I should repurchase this. It works and is gentle but the smell is quite a strong deterrent. If I find nothing, I might come back to this.


I love it so much cause it works really well!!!!


Hi! Are you supposed to use this immediately after cleansing BEFORE toner, or after toner? I'm asking because I'm currently using a toner that completes cleansing, like, it slightly still cleanses the possible remains of makeup etc. Thanks!

This is pretty much the only AHA that does not immediately make my skin freak the f out. I have sensitive skin and use it sparingly so my current bottle has lasted me a long time, which is awesome. It's gentle and effective without being stripping or overly drying. I definitely won't be looking for another AHA anytime soon.


This is the only AHA I use. I have only tried a couple others so I really can't compare it to the super high end AHA's. But this one works for me. I use it quite often right now. But, I do plan on scaling back to every other day or every third day as soon as I get everything I want incorporated into my routine. I already have a spare on standby and unless I run across a product that blows me away, this will continue to be my AHA of choice. Cosrx makes solid products at... Read more


This doesn't smell much of anything to me, even though I'm pretty sensitive to scents, so that alone is nice. I've used this once a week, but if you have sensitive skin like me, you might also want to add some extra calming and soothing products into your routine if you start using this AHA. I've felt overexfoliated on my cheeks after the first week already, but after I added more soothing and calming steps as well, I was able to continue using it without feeling any more lasting irritation at all. So far I feel like it has already... Read more


Two days into testing it out, the side of my face I had used it on felt noticeably smoother and looked much clearer than the other side. It is quite strong though, so overexfoliation can be a slight problem—the packaging's suggestion on using it only weekly is a little strict in my opinion, but using it daily would definitely be too much.

The smell personally wasn't very noticeable, and it definitely didn't feel drying on my skin.


Yes, it IS strong!


I love it so much because it works so well, but at the same time, I used so much that my skin feel too thin now :/


Ugh, so sorry :( I hope some days without it and some nice intense moisturizing products can help restore your moisture barrier.


Yep! Hopefully :) I'm slathering on benton snail bee essence and lotion as often as I can


So far very happy. Only used for 3 weeks (1-2 times per week) so I'm working through some purging but it seems to be very effective. I am simply not willing to pay $$$ for AHA or Lactic Acid even though I really liked the results of the Sunday Riley Goode Genes. I think this will work really well as long as I don't over exfoliate!


Also, I should say that I am pleasantly surprised at how gentle this is if used sparingly and not too often. Using it 1-2 times per week, my sensitive and acne prone skin is not bothered by it.


Definitely a holy grail for me! It keeps my skin soft and supple while evening out the tone of it.


Not too harsh of an exfoliant. Does not irritate the skin. Keep my pores unclogged.