COSRX
Low pH Niacinamide Micellar Cleansing Water (Single (100mL))
COSRX Low pH Niacinamide Micellar Cleansing Water (Single (100mL)) is a 100ml cleansing water from COSRX built around Niacinamide.
No reviews yet- Ships from our California warehouse
- Duties prepaid
- Suited to
- Congested skinUneven textureDehydrated skin
- Helps with
- Shoppers looking for Niacinamide in a cleansing waterRoutines that want Niacinamide and Allantoin in one stepFilling the cleansing water step with a Korean-market formula
Sold out.
Tell us where to send it
One email, the moment this exact unit is back in stock. Not a newsletter and not a sequence, and your address comes off the list the second it is sent.
- Duties prepaid
- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
How it works
The Low pH Niacinamide Micellar Cleansing Water (Single (100mL)) is a 100ml cleansing water, used on dry skin as the first evening cleanse, before any water. The active it is built around is Niacinamide, named seventh on its own ingredient list. The same list carries Allantoin, Zinc PCA and Madecassoside, so the active is not the only thing on it worth naming. How much of the Niacinamide stays on the skin, and for how long, is decided by the cleansing water format rather than by the list alone. COSRX sells this Niacinamide cleansing water in Korea, and this is that version.
Key benefits
- Niacinamide, the active this cleansing water is built around
- Allantoin, Zinc PCA and Madecassoside on the same list, actives
- Panthenol on the same list, a humectant
- Sodium Hyaluronate further down the same list
- Niacinamide named seventh on the manufacturer list printed on this page
Key actives
Niacinamideactive
Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is the entry this cleansing water is named after, and the list carries it.
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. The panel names it sixth on this cleansing water's list, beside Niacinamide.
Zinc PCAactive
Zinc PCA pairs zinc with the humectant PCA. It is used in oily and blemish-prone formulas for the look of shine and visible pores, and it hydrates at the same time. The panel names it eighth on this cleansing water's list, beside Niacinamide.
Madecassosideactive
Madecassoside is the centella triterpene most associated with the look of redness, and the one brands lead with in cica products. It is water soluble and stable, so it appears in essences as readily as in creams. It is named ninth on this cleansing water's list, alongside Niacinamide.
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 fourth on this cleansing water's list, alongside Niacinamide.
COSRX Low pH Niacinamide Micellar Cleansing Water (Single (100mL))
Where does this cleansing water go in my routine?
On dry skin as the first evening cleanse, before any water. Nothing goes under it: this cleansing water is the step everything else in the routine lands on top of. 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 Niacinamide and not three changes at once.
What else is on the list besides Niacinamide?
Allantoin, Zinc PCA and Madecassoside. The order they are printed in on this cleansing water's panel is the order on the box, so you can see where Niacinamide sits relative to them. Further down the same panel: Panthenol and Sodium Hyaluronate.
- 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.
Payment and security
We accept
How to use
- Use the Low pH Niacinamide Micellar Cleansing Water as your first cleansing step, on dry skin, before any water touches the face.
- Soak a cotton pad, sweep it over the face, then hold it against each eye for a few seconds before wiping.
- Follow with your usual gel or foam cleanser, then toner while the face is still damp.
- Once or twice a day, whenever there is makeup or sunscreen to lift. Do not scrub the pad back and forth over one spot; a soaked pad is a solvent rather than an eraser.
Worth knowing
- Patch test this cleansing water on a small area and wait a day before using it more widely, especially with Niacinamide on the list.
- Introduce this cleansing water on its own for the first week, so anything your skin does is traceable to the Niacinamide rather than to three changes at once.
Reviews
No reviews yet. Tell us how much you love the product!
Write Reviews (opens in a new tab)We’re on gram!
Creators trying on authentic Korean skincare routines and products from us.
Rating a shelf of Dr. Althea products one by one.
Jasmine Loo · YouTube
Two hydrating serums side by side, IUNIK and Dr. Althea.
Kristin · YouTube
A walk through the Dr. Althea serum lineup and who each one suits.
auraofmahmuda · YouTube
A blunt first take on the Dr. Althea range.
Lexi Chang · YouTube
A first look at the viral 345 Relief Cream before buying.
Shelley Nayak · YouTube
A first try of the Dr. Althea serum on camera.
Hannah Ziad · YouTube
COSRX, Korean-market original
This is COSRX's low-pH version of that step, with niacinamide in the name.
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 Centella can make your skin appear more hydrated, plumper and healthier.
Samantha Stein, PA-CDermatology physician assistant, Cleveland Clinic
1 more professional perspective
Niacinamide helps reduce the appearance of pores in a few ways. By strengthening the skin barrier and improving elasticity, pores appear less noticeable and more even.
Ashlyn YankeAesthetician, Cleveland Clinic
Ask an AI assistant about this product
Ask an AI assistant about this product
Opens ChatGPT, Perplexity or Claude in a new tab with the question prefilled. Claude asks you to sign in first.










