Isntree
Green Tea Fresh Serum
Green Tea Fresh Serum is Isntree's concentrated serum, formulated for dullness and an uneven-looking tone. Built around Camellia Sinensis Leaf Extract and Niacinamide, it is aimed at rough, flaky or wind-chapped texture and moisture loss through the day.
No reviews yet- Ships from our California warehouse
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- Suited to
- Dehydrated skinSensitive skinDull, uneven tone
- Helps with
- Shoppers looking for Camellia Sinensis Leaf Extract in a serumRoutines that want Camellia Sinensis Leaf Extract and Niacinamide in one stepFilling the serum step with a Korean-market formulaAnyone who wants the Camellia Sinensis Leaf Extract serum sold on Korean shelves
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- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
How it works
The Green Tea Fresh Serum is a 50ml serum, used after toner and before moisturizer, morning and evening. The plant extract it is built around is Camellia Sinensis Leaf Extract, named first on its own ingredient list. The same list carries Niacinamide, Allantoin and Adenosine, so the plant extract is not the only thing on it worth naming. How much of the Camellia Sinensis Leaf Extract 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, Camellia Sinensis Leaf Extract and all.
Key benefits
- Camellia Sinensis Leaf Extract, the plant extract this serum is built around
- Niacinamide, Allantoin, Adenosine and Dipotassium Glycyrrhizate on the same list, actives
- Bacillus Ferment and Epigallocatechin Gallate further down the same list
- Vigna Radiata Seed Extract and Camellia Japonica Flower Extract further down the same list
- Camellia Sinensis Leaf Extract named first on the manufacturer list printed on this page
- Original Korean Formula, the serum sold on Korean shelves
Key actives
Camellia Sinensis Leaf Extractplant extract
Camellia Sinensis is the tea plant. Green tea leaf extract carries catechins, among the most studied plant antioxidants, and is used for the look of redness and oily shine. It is the entry this serum is named after, and the list carries it.
Niacinamideactive
Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. The panel names it seventh on this serum's list, beside Camellia Sinensis Leaf Extract.
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 thirteenth on this serum's list, alongside Camellia Sinensis Leaf Extract.
Adenosineactive
Adenosine is a nucleoside that Korea's own cosmetic authority recognises as a wrinkle-care functional ingredient, which is why it appears on so many Korean lists at a low level. It is used for the look of fine lines and is stable and well tolerated. It is named twenty-first on this serum's list, alongside Camellia Sinensis Leaf Extract.
Dipotassium Glycyrrhizateactive
Dipotassium Glycyrrhizate is a water-soluble salt derived from licorice root. The panel names it twenty-second on this serum's list, beside Camellia Sinensis Leaf Extract.
Isntree Green Tea Fresh 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 Camellia Sinensis Leaf Extract and not three changes at once.
Is this the Korean-market serum or a US version?
The Korean-market one, Camellia Sinensis Leaf Extract 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 Camellia Sinensis Leaf Extract?
Niacinamide, Allantoin and Adenosine. The order they are printed in on this serum's panel is the order on the box, so you can see where Camellia Sinensis Leaf Extract sits relative to them. Further down the same panel: Dipotassium Glycyrrhizate, Bacillus Ferment and Epigallocatechin Gallate.
- 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
- Use the Green Tea Fresh Serum after toner and before moisturizer, morning and evening.
- Three or four drops covers the whole face. Press it in with flat palms instead of rubbing it around.
- Toner first so the surface is damp, then this, then about a minute before your moisturizer goes over the top.
- Twice a day, every day. Do not stack it with a second serum of the same kind; two hydrating serums in one routine do the work of one.
Worth knowing
- Patch test this serum on a small area and wait a day before using it more widely, especially with Camellia Sinensis Leaf Extract on the list.
- Introduce this serum on its own for the first week, so anything your skin does is traceable to the Camellia Sinensis Leaf Extract rather than to three changes at once.
Reviews
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Isntree, Korean-market original
Shop Green Tea Fresh Serum (50ml), the authentic Korean-market serum from Isntree formulated with Camellia Sinensis Leaf Extract, sourced for the Korean market rather than a US-shelf reformulation.
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.
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 It contains liquiritin, an active compound that helps to disperse and remove existing melanin in the skin.
Jennifer Chwalek, MDDermatologist, Byrdie
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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