COSRX
Hydrium Watery Toner (1.69 fl.oz / 50ml)
A watery hydrating toner from COSRX's Hydrium line, layering panthenol, allantoin and several hyaluronate forms, pressed in with hands after cleansing, in the 50 ml travel size.
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- Duties prepaid
- Suited to
- DryDehydratedSensitiveCompromised barrier
- Helps with
- DehydrationBarrier weaknessVisible redness and reactivity
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- Duties prepaid
- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
Key benefits
- Allantoin: a soothing, skin-conditioning agent
- Panthenol: pro-vitamin B5, carried for softness and moisture
- Sodium Hyaluronate: a low-weight form of hyaluronic acid, for surface hydration
- Hydrolyzed Hyaluronic Acid: the catalogue's most common humectant, for water retention
- Opens with Water, Butylene Glycol, Glycerin, 1,2-Hexanediol and Allantoin, the ingredients COSRX put first
- No fragrance or parfum on the ingredient list
Key actives
Allantoinactive
Allantoin is a comfrey-derived compound used to condition skin and soften the outer layer so it feels smoother. It is one of the standard additions to a formula built for easily irritated skin. On this toner's own ingredient list it is named fifth.
Panthenolhumectant
Panthenol is pro-vitamin B5: skin converts it to pantothenic acid. It is a humectant that holds water and leaves skin feeling soft and less tight, and it is one of the ingredients formulators reach for when a formula also contains something harsh. It is named sixth on this toner's list, alongside Allantoin.
Sodium Hyaluronatehumectant
Sodium Hyaluronate is the salt of hyaluronic acid, and it is what most products labelled hyaluronic actually contain. The salt dissolves more readily and the molecule is smaller, so it sits in the outer layer of skin rather than only on top of it. It is named seventh on this toner's list, alongside Allantoin.
Hydrolyzed Hyaluronic Acidhumectant
Hydrolyzed Hyaluronic Acid is hyaluronic acid cut into much shorter fragments. The smaller the fragment, the further into the outer layer it can settle, which is why serums stack several sizes together instead of using one. It is named tenth on this toner's list, alongside Allantoin.
Hyaluronic Acidhumectant
Hyaluronic Acid is a sugar chain the body already makes, and one gram of it can hold several litres of water. In a formula it is a humectant that pulls water to the surface of skin and holds it in a film, which is what makes skin look plumper while it is there. It is named eleventh on this toner's list, alongside Allantoin.
COSRX Hydrium Watery Toner (1.69 fl.oz / 50ml)
Where does this toner go in my routine?
Straight after cleansing, morning and evening, while the face is still damp. Anything thinner than a toner goes on before it, and anything richer goes on after. If you are adding it to a routine you already like, give it a week on its own first, so what you see is the Allantoin and not three changes at once.
What else is on the list besides Allantoin?
Panthenol, Sodium Hyaluronate and Hydrolyzed Hyaluronic Acid. The order they are printed in on this toner's panel is the order on the box, so you can see where Allantoin sits relative to them. Further down the same panel: Hyaluronic Acid.
- Ships from
- California
Duties are prepaid. Nothing is owed at delivery. Returns are accepted for 30 days, by mail.
Orders ship from our California warehouse, dispatched within 2 business days, and arrive in 3 to 5 days. Shipping is free on orders of $100 or more.
We split shipments free, so one out-of-stock item never holds up the rest of your order.
Where this unit came from
- 1Seoul
Bought as Korean-market stock - 2Customs
Duty paid by us before it enters the US - 3California
Ships domestically, no international leg
We stock the version of a formula that is sold in Korea, not the release a brand prepares for another market under the same name.
Every unit keeps its original barcode and batch code intact, so the unit in your hands can be checked against the brand’s own records.
Import duties are paid by us before the parcel reaches you, so nothing is owed at the door, and returns run for 30 days.
Every claim on this page traces to the unit in the box, the barcode, the batch code and the price you can read for yourself.
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How it works
The Hydrium Watery Toner is a 50ml toner, used straight after cleansing, morning and evening, while the face is still damp. The active it is built around is Allantoin, named fifth on its own ingredient list. The same list carries Panthenol, Sodium Hyaluronate and Hydrolyzed Hyaluronic Acid, so the active is not the only thing on it worth naming. How much of the Allantoin stays on the skin, and for how long, is decided by the toner format rather than by the list alone. COSRX sells this Allantoin toner in Korea, and this is that version.
How to use
- Use the Hydrium Watery Toner straight after cleansing, morning and evening, while the face is still damp.
- Pour a coin-sized pool into your palms and press it over the face in two passes rather than dragging it around with a cotton pad.
- It goes on before serum and moisturizer, and the damp layer it leaves is what the step above it holds on to.
- Twice a day, every day. Do not let it dry down completely before the next layer goes on, or you lose the reason for applying it to damp skin.
Reviews
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COSRX, Korean-market original
The Original Korean Formula toner from COSRX, 50ml formulated with Allantoin and Panthenol, held in the United States and shipped domestically.
Verify your unit when it arrives
Verify your unit when it arrives
Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.
COSRX verifies units itself. Find the verification page on cosrx.com and enter the batch number and expiration date printed on your unit. Read them off the package rather than from us, which is the point.
Source: COSRX FAQ
On the unit itself
- The Korean-market barcode, unaltered from the retail package.
- The manufacturer’s batch code, exactly as the maker printed it.
정품Genuine article, Korean-market stock
What professionals say
What professionals say
What skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.
Allantoin can tone down the dryness of the individual cells. It increases the water content of the skin, which means it helps to hydrate and moisturize.
Wilma Bergfeld, MDDermatologist, Cleveland Clinic Pantothenol is a common ingredient in skin care and hair products I recommend, particularly for people who are prone to dryness.
Taylor Bullock, MDDermatology resident, Cleveland Clinic
1 more professional perspective
Hyaluronic acid helps bind water to collagen, which traps water in the skin. That helps make the skin more plump and full-looking.
Samantha Stein, PA-CDermatology physician assistant, Cleveland Clinic
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