Versus

COSRX AHA/BHA Clarifying Treatment Toner Versus COSRX Hydrium Watery Toner

Toner
Toner
Korean Brand South Korea
Korean Brand South Korea

Updated on March 30, 2025

Overview

What they are

These products are both cruelty-free, fungal acne (malassezia) safe, and reef safe toners. They have a total of 5 ingredients in common

Suited For

They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin and scar healing

Free From

They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens, silicones or sulfates

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.

Ingredient Info

Click any item below to learn more and see relevant ingredients

What's inside (and what isn't)

What's inside (and what isn't)

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Concerns

Benefits

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Skin Conditioning, Solvent

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!

Learn more about Water
Humectant, Masking, Skin Conditioning

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.

Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.

Learn more about Butylene Glycol
Skin Conditioning, Solvent

1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. 

It is a:

  • Humectant, drawing moisture into the skin
  • Emollient, helping to soften skin
  • Solvent, dispersing and stabilizing formulas
  • Preservative booster, enhancing the antimicrobial activity of other preservatives 
Skin Conditioning, Skin Protecting, Soothing

Allantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.

Some studies have shown this ingredient can promote wound healing with higher concentrations.

Allantoin is derived from the comfrey plant but produced synthetically for cosmetic products to ensure purity.

Learn more about Allantoin
Skin Conditioning

Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.

There are two forms of panthenol: D and L.

D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.

Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):

Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.

This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.

Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.

This ingredient is also referred to as pro-vitamin B5.

Learn more about Panthenol

When to use

4,102 Routines
36% use in am
64% use in pm
80% use every day
When to use See routines that use it ->
396 Routines
52% use in am
48% use in pm
99% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

COSRX AHA/BHA Clarifying Treatment Toner 11 ingredients

3.7 /5
from 93 ratings
Light (34) Absorbs Well (33) Works Well (32)
solitaire_'s avatar

solitaire_

9 months ago
Review

It feels nice on my skin, very gentle and hydrating. I like how it doesn't have fragrance. It does have a subtly medicine smell but I think that's because of the ingredients, it's soothing and not too overpowering. This toner leaves my skin glowy the next morning whenever I use it the night before. I use this everyday since my skin got accustomed to it, used to only use it once a week, every week, Show more

#great value
#hydrating
#light
#absorbs well
Meegort's avatar

Meg

9 months ago
Review

A staple in my skin care routine that I stock up on! My ace scaring and residual red acne marks have overall brightened over time. I noticed specifically this when i introduced it to my skin care routine made a hugeee difference in the severity of my breakouts and the quickness of the fading of my acne marks! Make sure you use sunscreen though because i heard some people say it makes blemishes Show more

#hydrating
#light
#absorbs well
#works well

COSRX Hydrium Watery Toner 13 ingredients

4.2 /5
from 10 ratings
Works Well (5) Hydrating (5) Light (5)
nicolehancock's avatar

Nicole Hancock

8 months ago
Review

This hydrates my skin very well and gives that “glass skin” look. It doesn’t feel sticky and absorbs quickly. But something in this is breaking me out, no idea which ingredient is the culprit. Gives me tiny pimples in different areas of my face each day I use it. I’m disappointed because it seems like a great product for those with sensitive acne prone skin like myself, but my skin just doesn’t Show more

#great value
#hydrating
#broke me out
#irritating
mimiel's avatar

mimiel

7 months ago
Review

This is so hydrating and great for my combination sensitive skin! It’s also way better than the isntree ultra low molecular toner in terms of hydration and results it provides. This toner did not make my face burn nor red in fact it calmed down my redness and provided me with a great amount of hydration, I also noticed how my makeup base was a lot more flawless than before. Not to mention this Show more

#great value
#hydrating
#light
#absorbs well