Dr. Althea
345 Cream Mask (4 Sheets)
A sheet mask from Dr. Althea's Korean-market lineup. Niacinamide sits at position 8 of 38 on the brand's own ingredient list, a brightening and barrier-support active; Allantoin follows at position 16, a calming, comedolytic-adjacent skin-conditioning agent. 4ea to a unit.
No reviews yet4ea
- Korean-market formula
- Ships from our California warehouse
- Duties prepaid
- Suited to
- Dry skinCompromised barrierDehydrated skinSensitive skin
- Helps with
- Shoppers looking for Niacinamide in a sheet maskRoutines that want Niacinamide and Allantoin in one stepFilling the sheet mask step with a Korean-market formulaAnyone who wants the Niacinamide sheet mask sold on Korean shelves
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 345 Cream Mask is a 4ea sheet mask, used after toner, in place of your serum step, in the evening. The active it is built around is Niacinamide, named seventh on its own ingredient list. The same list carries Allantoin, Dipotassium Glycyrrhizate 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 sheet mask format rather than by the list alone. This is the Original Korean Formula, the sheet mask Dr.Althea sells in Korea, Niacinamide and all.
Key benefits
- Niacinamide, the active this sheet mask is built around
- Allantoin, Dipotassium Glycyrrhizate, Madecassoside and Sodium DNA on the same list, actives
- Pantothenic Acid and Resveratrol further down the same list
- Ceramide NP and Cholesterol further down the same list
- Niacinamide named seventh on the manufacturer list printed on this page
- Original Korean Formula, the sheet mask sold on Korean shelves
How to use
- After cleansing and toning, two to three times a week rather than daily.
- Unfold the sheet fully and press it against the face, smoothing from the center outward to remove air pockets.
- Leave on for fifteen to twenty minutes, the standard window for a cream-essence sheet to release fully.
- Remove and pat the remaining essence into the skin rather than rinsing; the leftover essence is worth pressing in rather than washing away.
Dr. Althea 345 Cream Mask (4 Sheets)
Where does this sheet mask go in my routine?
After toner, in place of your serum step, in the evening. Toner goes on before it, and the rest of the routine goes on after you take the sheet 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 Niacinamide and not three changes at once.
Is this the Korean-market sheet mask or a US version?
The Korean-market one, Niacinamide and all. We match this sheet mask to its Korean barcode before it reaches the shelf, which is the check that tells you which market release you are holding.
What else is on the list besides Niacinamide?
Allantoin, Dipotassium Glycyrrhizate and Madecassoside. The order they are printed in on this sheet mask's panel is the order on the box, so you can see where Niacinamide sits relative to them. Further down the same panel: Sodium DNA, Pantothenic Acid and Resveratrol.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809447256290
- Made in
- Republic of Korea
- Volume
- 4ea
- Category
- Mask / Sheet mask
- Actives
- Allantoin, Beta-Glucan, Centella Asiatica, Ceramide NP, Green Tea, Hyaluronic Acid, Licorice Root, Madecassoside, Niacinamide, Panthenol, PDRN (Sodium DNA), Sodium Hyaluronate, Tea Tree, Trehalose
- 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. The barcode in the specification above is the Korean-market one and it is printed on the box you receive.
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
Worth knowing
- Patch test this sheet mask on a small area and wait a day before using it more widely, especially with Niacinamide on the list.
- Introduce this sheet mask 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
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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
Dr. Althea, Korean-market original
The Original Korean Formula sheet mask from Dr.Althea, 4ea formulated with Niacinamide and Allantoin, 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 skin care, quoted from the medical sources linked beside each.
Your skin barrier is basically your outer layer of the skin.
Melissa Piliang, MDDermatologist, Cleveland Clinic Pretty much every step of a Korean skin care routine is going to have some component of hydration.
Alok Vij, MDDermatologist, Cleveland Clinic
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