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February 05, 2021 Charlotte Cho

CosRX Low pH Good Morning Gel Cleanser packaging

If you couldn’t tell by now, this week on THE KLOG we're a little obsessed about cleansing— because it's one of the best ways to prevent breakouts!

By the way, I’m so stoked you guys are digging the COSRX curation. Judging from the comments you are not only familiar with the brand, you guys have seen some pretty impressive results. 

As many have inquired in the comments section: Yes! We will be deep diving into each COSRX product, sharing why they’re so special and how to use them. And take note— I’ll be sharing more details about my routine in Part 2 of the Youtube All About Acne series that is set to go live next week.

Today, I’ll be sharing my thoughts on the COSRX Low pH Good Morning Gel Cleanser, which I use as the 2nd part of my double cleanse.

But first— fun fact! COSRX Low pH Good Morning Gel Cleanser was actually a product of crowdsourcing feedback from their customers. Many of their fans had expressed that the number one thing they look for in a cleanser is one with low pH, and presto a few months later COSRX formulated a cleanser with a pH of 5! It’s kind of insane how quick and responsive Korean cosmetic companies are. I wonder if larger cosmetic companies would *ever* be nimble enough to take feedback this seriously and quickly too.

New to pH? Here is a quick refresher. Your skin’s pH is naturally a little acidic (a.k.a pH of 4.5). Cleansers tend to be more on the naturally alkaline (pH of 6-12) because alkalinity is what helps remove grime and dirt. Unfortunately, the alkalinity of a cleanser is what could dry out and irritate your skin, and cause that tight, unpleasant feeling. For all those skincare junkies and sensitive skin types out there, a low pH cleanser is a must!

What else could this Low pH cleanser offer? Allow me to break it down for you.


Gel! There are not many gel cleansers out there that also doubles up as a foaming cleanser, but this one does. Initially when I was testing the gel cleanser, I was dealing with breakouts so I was very gentle when washing my face. More recently, when I was testing how well it removed makeup and I had to put a little more power to my cleansing motions, I noticed that it does lather up quite nicely.


At first whiff, it smells a lot like tea tree oil, and almost a bit medicinal. I actually prefer this natural scent over a heavily fragranced one. Bonus points because the scent doesn’t linger.

CosRX Low pH Good Morning Gel Cleanser review
Confirmed! A low pH of 4.5-5!  



Water, Cocamidopropyl Betaine, Sodium Lauroyl Methyl Isethionate, Polysorbate 20, Styrax Japonicus Branch/Fruit/Leaf Extract, Butylene Glycol, Saccharomyces Ferment, Cryptomeria Japonica Leaf Extract, Nelumbo Nucifera Leaf Extract, Pinus Palustris Leaf Extract, Ulmus Davidiana Root Extract, Oenothera Biennis (Evening Primrose) Flower Extract, Pueraria Lobata Root Extract, Melaleuca Alternifolia (Tea Tree) Leaf Oil, Allantoin, Caprylyl Glycol, Ethylhexylglycerin, Betaine Salicylate, Citric Acid, Ethyl Hexanediol, 1,2-Hexanediol, Trisodium Ethylenediamine Disuccinate, Sodium Benzoate, Disodium EDTA.

Special shoutout to Saccharomyces Ferment, a fermented yeast that is found in the Missha First Treatment Essence and is partly responsible for the bright, hydrated glow we all are addicted to. Love how high it is on the ingredient list!

The Tea Tree Leaf Oil is a great antiseptic and can soothe and treat breakouts while Betaine Salicylate is a natural chemical exfoliant that keeps your pores in check, free from dead skin cells that are hiding in the walls of your pores.

Although this cleanser is actually great for all skin types, I want to call out that it's a good pick for sensitive and dry skin types due to the skin-friendly pH of 5. It also works for acne-prone/oily skin types because of the pore-friendly ingredients.

Something to note!

As a gel cleanser, it does a great job of removing makeup, which is why I’m a little puzzled about why they dubbed it a “Good Morning" cleanser. However, I personally wouldn’t use it as a makeup remover around the eye area since it does sting when it gets into the eyes. Instead, I religiously use the Beauty Water to remove eye makeup first before going into any cleanse.


$11. For 150 ml, that’s a lot of product. You only need to use a dime sized amount each time, which will last you a long time. As Stephen said, when it comes to cleansers, a little goes a long way.

The results

My skin is thankful for the low pH cleanser because that my-face-is-going-to-crack-into-a-million-pieces feeling is not something to strive for. I've got bright, clear skin ready to take on the rest of my skin care products!

Your reviews

"Until this little gem came along I was using AmorePacific foaming cleanser which is also lovely but this is a fraction of the price and works just as well. I use this twice a day and never travel without it. I have very sensitive and dry skin and it never irritates my skin and leaves it feeling clean but not stripped." - Tami M

"I have super sensitive skin already, and my current perscription acne medicine has only worsened it. I have tried numerous cleansers but they all burn my skin. This one, however, does not. Highly recommend for anyone who has had trouble with normal foaming cleansers as this one is more of a gel and less irritating." - Morgan R

"You only have to use the tiniest squirt of this cleanser to get your whole face and neck perfectly clean - without drying out your skin. I have very sensitive skin, and this cleanser doesn't bother my skin at all! With how little you use, this is a fantastic buy." - Erin

What's a low pH friendly cleanser that you love and recommend? Share your comments below! 


Shop the COSRX Low pH Good Morning Gel Cleanser

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About Charlotte

Soko Glam co-founder and chief curator. Licensed esthetician sharing the love of all things K-beauty.

About Sokoglam

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