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 yet50ml
$37.98 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- 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
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.
- 30-day returns
- Free US shipping on orders of $100 or more
- Tracked delivery to your door
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
Inside the formula
Inside the formula
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.
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, essential oils, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (30): Camellia Sinensis Leaf Extract, Water, Butylene Glycol, Glycerin, Propanediol, Dipropylene Glycol, Niacinamide, 1,2-Hexanediol, Panthenol, Hydroxyacetophenone, Squalane, Ammonium Acryloyldimethyltaurate/VP Copolymer, Allantoin, Carbomer, Tromethamine, Betaine, Polyglyceryl-3 Methylglucose Distearate, Cetearyl Alcohol, Epigallocatechin Gallate, Glyceryl Stearate SE, Adenosine, Dipotassium Glycyrrhizate, Bacillus Ferment, Vigna Radiata Seed Extract, Camellia Japonica Flower Extract, Pinus Palustris Leaf Extract, Ulmus Davidiana Root Extract, Oenothera Biennis (Evening Primrose) Flower Extract, Pueraria Lobata Root Extract, Brassica Oleracea Italica (Broccoli) Sprout Extract
Ingredient list read from inkeedecoder.com on 10 September 2026.
30 of 30 explained
- Camellia Sinensis Leaf Extract plant 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.
- Water solvent
- Water is the base almost every serum, toner and cream is built on. It dissolves the water-loving ingredients and sets how light the finished texture feels. On an INCI list it is usually first, which only means it is the largest single ingredient by weight.
- Butylene Glycol humectant
- Butylene Glycol is a small glycol that does two jobs at once: it holds water in the top layer of skin and it dissolves plant extracts and actives that plain water cannot. It also thins a formula, which is why watery Korean essences lean on it.
- Glycerin humectant
- Glycerin is the most used humectant in skincare. It draws water into the outer layer of skin and holds it there, and it is one of the very few ingredients whose hydrating effect is settled science rather than marketing. Higher amounts feel tacky, which is why it is usually blended.
- Propanediol humectant
- Propanediol is a plant-derived glycol used in place of propylene glycol. It hydrates, carries actives into solution, and gives a lighter, less sticky slip than glycerin at the same strength.
- Dipropylene Glycol humectant
- Dipropylene Glycol is a glycol used as a solvent and a light humectant. Its main job is keeping the rest of the formula dissolved and the texture fluid rather than adding hydration of its own.
- Niacinamide active
- Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is used at roughly 2 to 5 percent for the look of uneven tone and visible pores, and it is water soluble, stable and comfortable beside almost every other active, which is why it turns up in so many lists.
- 1,2-Hexanediol humectant
- 1,2-Hexanediol is a glycol used for two reasons: it holds water like glycerin, and it makes a formula harder for microbes to live in, so less traditional preservative is needed. Korean formulas use it heavily for that second reason.
- Panthenol humectant
- Panthenol is pro-vitamin B5: skin converts it to pantothenic acid. It is a humectant that holds water and leaves skin feeling soft and less tight, and it is one of the ingredients formulators reach for when a formula also contains something harsh.
- Hydroxyacetophenone preservative booster
- Hydroxyacetophenone is an antioxidant that also strengthens a preservative system, so a formula needs less traditional preservative. Korean formulas pair it with 1,2-hexanediol constantly.
- Squalane emollient
- Squalane is the stable, saturated version of squalene, a lipid human skin already makes. It is a light emollient that absorbs quickly, does not oxidise, and is one of the few oils widely considered safe for blemish-prone skin. Most cosmetic squalane is now from sugarcane or olive rather than shark.
- Ammonium Acryloyldimethyltaurate/VP Copolymer thickener
- This is a synthetic thickener that gels quickly and holds an emulsion stable across a wide pH range. It gives a light, non-tacky body.
18 more explained
- Allantoin active
- 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.
- Carbomer thickener
- Carbomer is a synthetic polymer that only gels once a base neutralises it, which is why arginine or tromethamine sits nearby on the list. It gives the clear, non-stringy gel texture a xanthan formula cannot reach.
- Tromethamine pH adjuster
- Tromethamine neutralises acidic thickeners such as carbomer so they gel, and holds a formula near skin-friendly pH. It is used at a fraction of a percent.
- Betaine humectant
- Betaine is a sugar-beet-derived humectant that cells use to hold water. In a formula it hydrates and takes the edge off cleansers and acids, which is why it often appears alongside them.
- Polyglyceryl-3 Methylglucose Distearate emulsifier
- Polyglyceryl-3 Methylglucose Distearate is a sugar-derived emulsifier known for a light, non-soapy feel. It builds gel-creams that do not read as rich.
- Cetearyl Alcohol fatty alcohol
- Cetearyl Alcohol is a waxy solid, not the drying kind of alcohol. It is a blend of cetyl and stearyl alcohols used to thicken a cream and keep oil and water from separating, and it softens skin as it does so.
- Epigallocatechin Gallate antioxidant
- Epigallocatechin Gallate, usually written EGCG, is the main catechin in green tea and the compound most green tea claims rest on. It is used as a plant antioxidant.
- Glyceryl Stearate SE emulsifier
- Glyceryl Stearate SE is the self-emulsifying grade, supplied with a little soap already built in so it can hold an emulsion with less help. It thickens and softens like the plain form.
- Adenosine active
- 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.
- Dipotassium Glycyrrhizate active
- Dipotassium Glycyrrhizate is a water-soluble salt derived from licorice root. It is the licorice fraction Korean formulas use for the look of redness, and it is far more stable in water than the whole extract.
- Bacillus Ferment ferment
- Bacillus Ferment is a bacterial ferment that yields enzymes and water-holding polysaccharides. Korean formulas use it as a conditioning ferment.
- Vigna Radiata Seed Extract plant extract
- Mung bean seed extract, the nokdu of Korean cleansing powders. It carries starches, proteins and saponins and is used as a conditioning, mildly cleansing extract.
- Camellia Japonica Flower Extract plant extract
- Camellia Japonica Flower Extract comes from the flower of the Korean camellia. It is used as a conditioning, hydrating extract.
- Pinus Palustris Leaf Extract plant extract
- Pinus Palustris is longleaf pine. Its needle extract carries plant antioxidants and appears in Korean formulas alongside other conifer extracts.
- Ulmus Davidiana Root Extract plant extract
- Ulmus Davidiana is Japanese elm, whose inner bark yields a naturally slippery mucilage. Korean formulas use the root extract for that cushioned feel and for the look of reactive skin.
- Oenothera Biennis (Evening Primrose) Flower Extract plant extract
- Evening Primrose Flower Extract is used as a conditioning plant extract. The seed oil of the same plant is the better known part, and it is a different ingredient.
- Pueraria Lobata Root Extract plant extract
- Pueraria Lobata is kudzu. Its root extract carries isoflavones, plant compounds structurally similar to oestrogen, and Korean formulas use it for the look of thinning, less resilient skin.
- Brassica Oleracea Italica (Broccoli) Sprout Extract plant extract
- Broccoli sprout extract. Sprouts carry far more sulforaphane than the mature head, which is why the sprout is declared separately.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809738322154
- Made in
- Republic of Korea
- Volume
- 50ml
- Category
- Serum & Ampoule / Watery Serum
- Actives
- Adenosine, Allantoin, Green Tea, Licorice Root, Niacinamide, Panthenol, Squalane
- Ships from
- California or Korea
Orders ship from California or direct from Korea with tracked delivery to your door, and both routes carry the same Korean-market release. Shipping is free on orders of $100 or more. Returns are accepted for 30 days, by mail.
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 - 2Barcode
Listed against the Korean barcode on its box - 3California or Korea
Ships to you from either, as the same Korean-market release
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.
Every order ships from California or direct from Korea, 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.
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 Green Tea Fresh Serum
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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.
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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