Isntree
Ultra-Low Molecular Hyaluronic Acid Serum
Isntree Ultra-Low Molecular Hyaluronic Acid Serum is a 50ml serum whose ingredient list carries Hydrolyzed Hyaluronic Acid alongside Allantoin and Madecassoside.
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- Suited to
- SensitiveDryNormalCombination
- Helps with
- Post-exfoliation sensitivityRough, flaky or wind-chapped textureDehydration and tight-feeling skinRedness and easily reactive skin
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- 30-day returns
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- Dispatched within 2 business days
How it works
The Ultra-Low Molecular Hyaluronic Acid Serum is a 50ml serum, used after toner and before moisturizer, morning and evening. The humectant it is built around is Hydrolyzed Hyaluronic Acid, named seventeenth on its own ingredient list. The same list carries Allantoin, Madecassoside and Beta-Glucan, 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 serum format rather than by the list alone. This is the Original Korean Formula, the serum Isntree sells in Korea, Hydrolyzed Hyaluronic Acid and all.
Key benefits
- Hydrolyzed Hyaluronic Acid, the humectant this serum is built around
- Allantoin and Madecassoside on the same list, actives
- Beta-Glucan on the same list, a polysaccharide
- Malachite Extract on the same list, a mineral
- Panthenol and Sodium Hyaluronate further down the same list
- Potassium Hyaluronate and Hyaluronic Acid further down the same list
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 seventeenth on this serum's own ingredient list.
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 eleventh on this serum's list, beside Hydrolyzed Hyaluronic Acid.
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 thirty-first on this serum's list, alongside Hydrolyzed Hyaluronic Acid.
Beta-Glucanpolysaccharide
Beta-Glucan is a polysaccharide from oats or yeast. It holds a large amount of water, forms a soothing film, and is one of the ingredients formulators reach for in products aimed at reactive skin. It is named thirty-second on this serum's list, alongside Hydrolyzed Hyaluronic Acid.
Malachite Extractmineral
Malachite is a green copper carbonate mineral. Its extract is used in a formula as a source of trace copper. It is named sixteenth on this serum's list, alongside Hydrolyzed Hyaluronic Acid.
Isntree Ultra-Low Molecular Hyaluronic Acid Serum
Where does this serum go in my routine?
After toner and before moisturizer, morning and evening. Anything thinner than a serum goes on before it, and anything richer goes on after. 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 serum or a US version?
The Korean-market one, Hydrolyzed Hyaluronic Acid and all. We match this serum 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?
Allantoin, Madecassoside and Beta-Glucan. The order they are printed in on this serum'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: Malachite Extract, 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
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How to use
- AM and PM, after toner and before moisturizer, as a pure hydration step.
- Two to three drops pressed into damp skin rather than rubbed in.
- Layer under a treatment serum if your routine includes one, since this carries no competing active.
- Seal with moisturizer, and with sunscreen every morning.
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 serum from Isntree, 50ml formulated with Hydrolyzed Hyaluronic Acid 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 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
Small, preliminary studies suggest that madecassoside can dial down inflammatory cellular messengers called cytokines, including those that are typically turned on during an acne flare.
Whitney Bowe, MDDermatologist, Byrdie
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