COSRX
The Alpha-Arbutin Discoloration Care Hydrogel Mask (3ea)
A three-piece discoloration-care hydrogel mask carrying alpha-arbutin, niacinamide, ferulic acid and glutathione, left on for twenty minutes for a more even-looking tone on cleansed skin.
No reviews yet- Ships from our California warehouse
- Duties prepaid
- Suited to
- MatureFine linesSensitiveCompromised barrier
- Helps with
- Fine lines and loss of bounceBarrier weaknessDehydrationEarly environmental damage
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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
A hydrogel mask is a gel sheet rather than a paper one, which is why it clings to the face and does not dry out mid-wear. This one carries niacinamide near the front of its list, with alpha-arbutin and acetyl glucosamine behind it. It goes on after toner, in place of the serum step, and the essence left behind is pressed in rather than rinsed off. Uneven patches that show most in photographs are the case this fits, and evenness is slow work: a mask is one evening of it rather than the whole of it. Two or three evenings a week is the rhythm.
Key benefits
- Alpha-arbutin and niacinamide pair on the brightening side
- Ferulic acid and glutathione add antioxidant support
- Five ceramide entries and hydrolyzed collagen mind the barrier while tone evens
- The hydrogel turns transparent as it warms, a cue it has settled in
Key actives
Alpha-Arbutin
brightening support where discoloration sits
Niacinamide
supports a more even, luminous look
Ferulic Acid
an antioxidant that partners well with brighteners
Ceramide NP
supports the feel of an intact skin barrier
COSRX The Alpha-Arbutin Discoloration Care Hydrogel Mask (3ea)
How does niacinamide relate to the alpha-arbutin in this mask's name?
Niacinamide actually sits higher on the ingredient list, in fourth place, than alpha-arbutin, which appears twelfth. Both ingredients are commonly paired for a more even-looking complexion, and the product name highlights arbutin while niacinamide is the higher-positioned partner ingredient by list order.
Is ferulic acid doing anything meaningful in this formula?
Ferulic acid appears in the back half of the ingredient list alongside tocopherol and glutathione, the formula's antioxidant cluster. It sits in a supporting rather than headline position, working alongside the brightening pair rather than carrying the mask on its own.
Does this mask include any barrier-supporting ingredients, or is it purely for tone?
Ceramide NP and ceramide EOP both appear near the end of the ingredient list, alongside hydrolyzed collagen and panthenol. Their presence is a smaller supporting inclusion rather than a primary focus, but it does mean the formula is not purely an acid or brightening treatment with nothing for the skin barrier.
How many sheets come in this package?
The mask ships as three individually wrapped hydrogel sheets, each sealed on its own so unused sheets stay fresh until opened. That is enough for roughly three separate sessions rather than a single-use trial size.
Can this mask be layered on top of an acid toner used earlier in the routine?
The mask itself contains no acid exfoliant, so nothing in this list will compound with one used earlier. Panthenol, allantoin, and the ceramides near the end of the list are all ingredients commonly layered after an acid step for that reason. Patch testing any new combination first is still a reasonable habit, especially on a night skin is already reacting to something else.
- 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 Alpha-Arbutin Discoloration Care Hydrogel Mask after toner, in place of your serum step, in the evening.
- Unfold the sheet, line it up at the eyes first, then smooth it outward so no air is trapped underneath.
- Take it off at the time printed on the pack, pat in the essence left behind rather than rinsing, then go straight to your moisturizer.
- Two or three evenings a week is a normal rhythm. Do not leave it on past its time; a sheet that has gone dry takes moisture back off the face as it goes.
Worth knowing
- Collagen here is not plant-derived, so this is not a vegan formula.
Reviews
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COSRX, Korean-market original
Alpha-arbutin hydrogel mask, 3 ea, with Niacinamide and Ferulic Acid.
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.
Arbutin works to inhibit tyrosinase, an enzyme present in melanocytes, the pigment-producing cells in the skin. This results in less pigment, dark spots and skin lightening.
Tiffany Jow Libby, MDBoard-certified dermatologist, mindbodygreen Ceramides are part fatty acid and part amino acid and are able to be the grout that keeps the building blocks of the skin together and functioning as a barrier between the inside and outside world.
Amy Kassouf, MDDermatologist, 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
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