isoi Blemish Care Sleeping Pack 50ml
isoi Blemish Care Sleeping Pack is a 50ml sleeping mask whose ingredient list carries Arbutin alongside Euterpe Oleracea (Acai) Fruit Extract and Vaccinium Angustifolium Fruit Extract.
No reviews yet- Ships from our California warehouse
- Duties prepaid
- Suited to
- Oily skinCombination skinBlemish-prone skin
- Helps with
- Skin that looks congested or blemish-proneFitting a Korean-market step into an existing routineShoppers who want the same formula sold on shelves in Korea
In stock. Ships from our California warehouse, dispatched within 2 business days
You’re $100.00 away from free US shipping.
- Duties prepaid
- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
Key benefits
- Arbutin, the active this sleeping mask is built around
- Euterpe Oleracea (Acai) Fruit Extract, Vaccinium Angustifolium Fruit Extract, Vaccinium Macrocarpon (Cranberry) Fruit Extract and Houttuynia Cordata Extract on the same list, plant extracts
- Olea Europaea (Olive) Leaf Extract and Castanea Crenata (Chestnut) Shell Extract further down the same list
- Salix Alba (Willow) Bark Extract and Centella Asiatica Extract further down the same list
- Arbutin named fifth on the manufacturer list printed on this page
- The Korean-market release of this sleeping mask, confirmed against its Korean barcode
Key actives
Arbutinactive
Arbutin is the naturally occurring form of the same compound, from bearberry and related plants, used for the look of uneven tone. The alpha isomer is the more stable of the two. On this sleeping mask's own ingredient list it is named fifth.
Euterpe Oleracea (Acai) Fruit Extractplant extract
Acai fruit extract, from the Amazonian palm berry. It carries anthocyanins, the same purple pigment polyphenols found in blueberry, and is used as a plant antioxidant. The panel names it eleventh on this sleeping mask's list, beside Arbutin.
Vaccinium Angustifolium Fruit Extractplant extract
Lowbush blueberry fruit extract, high in anthocyanins. Berry extracts are used as plant antioxidants and can tint a formula. It is named twelfth on this sleeping mask's list, alongside Arbutin.
Vaccinium Macrocarpon (Cranberry) Fruit Extractplant extract
Cranberry fruit extract, acidic and high in proanthocyanidins. It is used as an antioxidant berry extract. The panel names it fourteenth on this sleeping mask's list, beside Arbutin.
Houttuynia Cordata Extractplant extract
Houttuynia Cordata is heartleaf, and it is one of the two or three anchor plants of Korean calming skincare. Its extract carries quercitrin and other flavonoids and is used for the look of redness and blemish-prone skin. It is named sixteenth on this sleeping mask's list, alongside Arbutin.
How to use
- Apply as the last step of a nighttime routine, over or in place of a regular moisturizer, and leave on overnight. Rinse with lukewarm water in the morning.
Where does this sleeping mask go in my routine?
As the final step of the evening routine, over your usual moisturizer or in place of it. Toner goes on before it, and the rest of the routine goes on after you take the sleeping mask off. 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 Arbutin and not three changes at once.
Is this the Korean-market sleeping mask or a US version?
The Korean-market one, Arbutin and all. We match this sleeping mask to its Korean barcode before it reaches the shelf, which is the check that tells you which market release you are holding.
Does this sleeping mask contain fragrance?
Yes. The ingredient list names Citronellol and Geraniol. They sit on the panel printed on this page, so you can read the position for yourself before you buy. If fragrance components are something you avoid, this sleeping mask is not the one.
What else is on the list besides Arbutin?
Euterpe Oleracea (Acai) Fruit Extract, Vaccinium Angustifolium Fruit Extract and Vaccinium Macrocarpon (Cranberry) Fruit Extract. The order they are printed in on this sleeping mask's panel is the order on the box, so you can see where Arbutin sits relative to them. Further down the same panel: Houttuynia Cordata Extract, Olea Europaea (Olive) Leaf Extract and Castanea Crenata (Chestnut) Shell Extract.
- 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 it works
The Blemish Care Sleeping Pack is a 50ml sleeping mask, used as the final step of the evening routine, over your usual moisturizer or in place of it. The active it is built around is Arbutin, named fifth on its own ingredient list. The same list carries Euterpe Oleracea (Acai) Fruit Extract, Vaccinium Angustifolium Fruit Extract and Vaccinium Macrocarpon (Cranberry) Fruit Extract, so the active is not the only thing on it worth naming. How much of the Arbutin stays on the skin, and for how long, is decided by the sleeping mask format rather than by the list alone. This is the Original Korean Formula, the sleeping mask isoi sells in Korea, Arbutin and all.
Worth knowing
- Introduce any new product gradually rather than adding several new steps to a routine at once, so a reaction is easy to trace back to the right cause.
- Patch test on a small area first and wait a day before applying it to the full face, especially the first time you use it.
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
Korean-market original
The Original Korean Formula sleeping mask from isoi, 50ml formulated with Arbutin and Euterpe Oleracea (Acai) Fruit Extract, 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.
Match the batch code on the box against the code printed on the bottle or tube itself; the two are stamped separately and should agree.
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 Its potential for skincare is promoted because of its anti-inflammatory (think blemishes, rashes, eczema) and hydrating properties.
Michele Koo, MDPlastic surgeon, PureWow
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.