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COSRX

COSRX Hydrium Watery Toner.

#25 in TonersSee the ranking →
About this product

A watery, lightweight hydrating toner from COSRX, applied after cleansing to add moisture to the skin.

Full ingredients

Water, Butylene Glycol, Glycerin, 1,2-Hexanediol, Allantoin, Panthenol, Sodium Hyaluronate, Pentylene Glycol, Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Ethylhexylglycerin, Hydrolyzed Sodium Hyaluronate

More from COSRX 46 products · Guru Score 88% →

Guru Score

74%

Mixed

12 experts · Strong agreement

What the gurus are saying

Experts split on the Centella claim, since the formula is mostly water and Centella sits far down the ingredient list, which some find overstated. Others praise it as watery, lightweight and quick to sink in, a pat-on step that layers well with drying acne treatments and feels calming for sensitive skin. Its poly glutamic acid forms a soothing film that helps cut water loss without feeling heavy.
Synthesized from 12 expert reviews · most recent take October 2026

What they liked

  • Absorbs quickly without tackiness
  • Layers well with acne treatments and retinoids

What they flagged

  • Mild plastic-like smell

Type

TonersLiquid

Key actives

Formula notes

Fragrance-freeNo drying alcohol

Where to buy

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What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored
~Nay
"I really liked these at first, but [...] the problem with both of these is that I feel I do have peeling if I put makeup on top of these. So they're really great sunscreens if you don't wear makeup, but if you do, you could find yourself very frustrated with those."
~Yay
"You can never go wrong with this stuff. It has no scent to it. It's lovely."
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"Got the Ed green tea complex Chinese skull cap toner"
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"In my opinion I would say this one's great for oily acne prone and sensitive skin"
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"It feels nice to use but for oilier skin I have a feeling that using this in your morning routine especially if you're going to use it with sunscreen and anything else it could be a bit over the top and a bit too much. Just pat it to soak it in but it does take a little bit of time to soak in. If you have oily skin using it at night is great then you just let it soak in while you're sleeping. [...] Once it soaks in it goes to kind of a radiant finish which is nice and glowy."
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"It can help with texture, pore minimization, and appearance, hydrates and balances oily skin, and it's typically recommended most often for oily or combination skin, or dull skin, or skin that's just lacking in luster."
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"You can never go wrong with this stuff. It has no scent to it. It's lovely."
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"It's gentle yet hydrating yet effective and efficient"
~Nay
"This is just not true. [...] The first ingredient in here is water. You're looking at 99% water in this product. Then it's got butylene glycol, then it's got 1,2-hexanediol, and then the fourth ingredient in here is Centella. So you're looking at a fraction of a percent of Centella, maybe 1% in this entire thing. And then calling it 100% Centella asiatica, I don't like it because you're being [...] misled. I really don't like that for my skin of color family."
~Yay
"I cannot tell you how much I love and adore this the only Town side is this is this is an overnight mask you pop it on during the day and take it off but this is an overnight mask Sona is a bit of a learning curve but I'm absolutely Blown Away by the results"
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"I cannot tell you how much I love and adore this the only Town side is this is this is an overnight mask you pop it on during the day and take it off but this is an overnight mask Sona is a bit of a learning curve but I'm absolutely Blown Away by the results"
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"It is truly multi use... this is a fabulous product what I absolute love is its spray"
Translated from the guru's original language.
~Yay
"I'm going to use the tear tier milky toner despite what it looks like. I've been using this for some time and it just never seems to go down. It's a very nice, more on the moisturizing side of milky toners but still nice and light. It smells a little bit like plastic."
~Yay
"This stands apart as one of the best options when it comes to those of us that need a little anti-aging boost and need a little extra hydration. [...] You've got that coverage in this style of product. It finishes not dewy, not glossy or greasy, it's just a guaranteed good skin day, and I love that. [...] If you like guaranteed good skin with some extra hydration and a dose of peptides, this is the one."
~Yay
"Layers so well with acne treatment products that are really drying if you're using like a retinoid gel or a benzoyl peroxide wash this is so good"
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"This is an essence toner that I cannot believe I forgot about because this is actually what started it all. [...] This is [...] liquid grape jelly. [...] She recommended this and I have purchased probably 10 plus bottles at this point. [...] If you want the OG, if you want the good stuff, if you just want the basic most calming for sensitive skin, this is your answer."
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"Layers so well with acne treatment products that are really drying if you're using like a retinoid gel or a benzoyl peroxide wash this is so good"
~Yay
"This is one that is a must try. It is super watery, super lightweight. You pump onto your palms like two pumps, you pat it all over your skin after cleansing, absorbs really quickly and because it's so lightweight it's very versatile in the sense I find that many people can benefit from this product. I also love the ingredients, especially for those who are tackling anti-aging concerns. It has a blend of various different peptides including copper tripeptide."
~Yay
"This has a very creamy texture but it's very lightweight it feels like there's nothing on it leaves a natural finish on the skin"
~Yay
"The can make mermaid skin gel or skin uvf one it's another amazing Korean option it just sits nicely Blends invisibly feels like your Skin's naked but it's not"
~Yay
"I like this cleanser, I've always liked it. It's a centella and green tea cleanser that is really nice because centella, although I did say I don't love actives in cleansers, has calming ingredients as does green tea. I would suggest if you are going to use this, let it sit on your face for a few minutes [...] and then wash it off, [...] otherwise [...] you're wasting your parents' hard-earned cash or your own hard-earned cash."
~Yay
"But here's where this product has really been one that I think flies under the radar. It's that it's got poly glutamic acid in it, which I don't know why brands are not so generous with this ingredient because it compliments hyaluronic acid really well or performs really well on its own because it is hydrating but it creates this slippery soothing film on the surface of the skin to also reduce water loss. So it has occlusive properties but it's not heavy."
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"I think these kits are a great way to try these products out those of you who love the snail Essence and an all-in-one gel cream as much as I do great time to stock up"
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"But here's where this product has really been one that I think flies under the radar. It's that it's got poly glutamic acid in it, which I don't know why brands are not so generous with this ingredient because it compliments hyaluronic acid really well or performs really well on its own because it is hydrating but it creates this slippery soothing film on the surface of the skin to also reduce water loss. So it has occlusive properties but it's not heavy."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Humectants and emollients

Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.

Source: DermNet

Frequently asked.

What is COSRX Hydrium Watery Toner?

A watery, lightweight hydrating toner from COSRX, applied after cleansing to add moisture to the skin.

Is COSRX Hydrium Watery Toner worth it?

The gurus are split. 10 of the 12 gurus give it their stamp of approval while 2 would skip it, which lands it in the middle at a Guru Score of 74%.

What is COSRX Hydrium Watery Toner's Guru Score?

COSRX Hydrium Watery Toner holds a Guru Score of 74%. That is our read on how warmly the experts talk about it, based on the verdicts of 12 expert reviewers we have collected.

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