Isntree
Ultra-Low Molecular Hyaluronic Acid Mask
Isntree Ultra-Low Molecular Hyaluronic Acid Mask is a sheet mask with Hydrolyzed Hyaluronic Acid, used after toner, in place of your serum step, in the evening.
No reviews yet- Ships from our California warehouse
- Duties prepaid
- Suited to
- SensitiveDryNormalCombination
- Helps with
- Dehydration and tight-feeling skinMoisture loss through the dayPost-exfoliation sensitivityA weekly boost between regular routine steps
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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
The Ultra-Low Molecular Hyaluronic Acid Mask is a sheet mask, used after toner, in place of your serum step, in the evening. The humectant it is built around is Hydrolyzed Hyaluronic Acid, named sixth on its own ingredient list. The same list carries Acetyl Glucosamine, Allantoin and Borago Officinalis Extract, so the humectant is not the only thing on it worth naming. How much of the Hydrolyzed Hyaluronic Acid 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 Isntree sells in Korea, Hydrolyzed Hyaluronic Acid and all.
Key benefits
- Hydrolyzed Hyaluronic Acid, the humectant this sheet mask is built around
- Acetyl Glucosamine and Allantoin on the same list, actives
- Borago Officinalis Extract and Chamomilla Recutita (Matricaria) Flower Extract on the same list, plant extracts
- Centaurea Cyanus Flower Extract and Hyacinthus Orientalis Extract further down the same list
- Lavandula Angustifolia (Lavender) Flower Extract and Salvia Sclarea (Clary) Extract further down the same list
- Hydrolyzed Hyaluronic Acid named sixth on the manufacturer list printed on this page
Key actives
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. The name on the box points at it, and it is named sixth on this sheet mask's own ingredient list.
Acetyl Glucosamineactive
Acetyl Glucosamine is the sugar unit hyaluronic acid is built from. It is used as a humectant and, at higher levels, for the look of uneven tone, often paired with niacinamide. The panel names it twentieth on this sheet mask's list, beside Hydrolyzed Hyaluronic Acid.
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. It is named twenty-seventh on this sheet mask's list, alongside Hydrolyzed Hyaluronic Acid.
Borago Officinalis Extractplant extract
Borage extract. The plant is best known for the gamma-linolenic acid in its seed oil, while the water extract carries mucilage that holds water at the surface. The panel names it fourteenth on this sheet mask's list, beside Hydrolyzed Hyaluronic Acid.
Chamomilla Recutita (Matricaria) Flower Extractplant extract
Chamomile Flower Extract is one of the oldest ingredients in skincare, carrying bisabolol and chamazulene. It is used for the look of redness in formulas for reactive skin. The panel names it fifteenth on this sheet mask's list, beside Hydrolyzed Hyaluronic Acid.
Isntree Ultra-Low Molecular Hyaluronic Acid Mask
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 Hydrolyzed Hyaluronic Acid and not three changes at once.
Is this the Korean-market sheet mask or a US version?
The Korean-market one, Hydrolyzed Hyaluronic Acid 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 Hydrolyzed Hyaluronic Acid?
Acetyl Glucosamine, Allantoin and Borago Officinalis Extract. The order they are printed in on this sheet mask's panel is the order on the box, so you can see where Hydrolyzed Hyaluronic Acid sits relative to them. Further down the same panel: Chamomilla Recutita (Matricaria) Flower Extract, Centaurea Cyanus Flower Extract and Hyacinthus Orientalis 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 to use
- Use the Ultra-Low Molecular Hyaluronic Acid 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
- Patch test on the inner arm before a first full-face application if skin tends to react easily.
- Store away from direct sunlight and high heat to keep the texture and scent stable over time.
- Introduce one new active at a time when adding this into an existing routine.
Reviews
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Isntree, Korean-market original
The Original Korean Formula sheet mask from Isntree, formulated with Hydrolyzed Hyaluronic Acid and Acetyl Glucosamine, 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.
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 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
1 more professional perspective
It contains high levels of an antioxidant known as apigenin, which explains its effects on the skin.
Joshua Zeichner, MDDermatologist, Byrdie
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