MEDITHERAPY
Porethera Shot Exosome Spicule Serum 38ml
MEDITHERAPY Porethera Shot Exosome Spicule Serum 38ml is a serum led by Hydrolyzed Sponge on its own ingredient panel, sourced as the Korean-market formula.
No reviews yet38 ml
$197.37 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- NormalCombinationDry
- Helps with
- A targeted treatment step between toner and moisturizerA concentrated step layered under a moisturizerDaily use as the treatment step of a routine
In stock. Arrives in 3 to 7 business days
We accept
You’re $100.00 away from free US shipping.
- 30-day returns
- Free US shipping on orders of $100 or more
- Tracked delivery to your door
Key benefits
- Hydrolyzed Sponge named on this product's own ingredient panel, near the top of it
- Niacinamide on the same panel, the formula's active
- Centella Asiatica Leaf Vesicles on the same panel, the formula's plant extract
- 38 ml to a unit
- Korean-market formula, with its Korean barcode and batch code intact on the box
Key actives
4Niacinamide
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.
6Hydrolyzed Sponge
Hydrolyzed Sponge is processed freshwater sponge, which carries fine silica spicules. In a formula it works as a mild physical exfoliant.
17Centella Asiatica Leaf Vesicles
The membrane-bound packets isolated from centella asiatica leaf. It is a recent Korean way of delivering the cica plant's own compounds, declared as vesicles rather than as a whole extract.
20Adenosine
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.
Inside the formula
Inside the formula
- 4Niacinamide
- 6Hydrolyzed Sponge
- 17Centella Asiatica
- 20Adenosine
Where each key active sits on the declared ingredient list, by entry number. Position is proportion: the further forward, the larger its share.
Is the Porethera Shot Exosome Spicule Serum 38ml sold here MEDITHERAPY's Korean-market formula?
Yes. What ships is MEDITHERAPY's release for the Korean market: the formula and packaging sold in Korea, with the Korean-market barcode and batch code intact on the box rather than swapped for an export or US-retail label.
Where does the Porethera Shot Exosome Spicule Serum 38ml go in a routine?
It takes after toner and before moisturizer. Use it exactly the way you would any serum at that point in a routine. A serum in this format is built to carry a concentrated dose of its named actives in a light enough base that it absorbs before the next step goes on, which is the reason this step order tends to hold across brands, not only for this one.
Who is the Porethera Shot Exosome Spicule Serum 38ml best suited for?
Normal, Combination, Dry skin types get the most straightforward use from a serum in this format. Patch test first, as with any new product entering a routine, and give it a week or two before judging the fit.
What format is the Porethera Shot Exosome Spicule Serum 38ml, and how does that change how it is used?
It is a serum, and the format sets the routine rules that come with it: Apply to clean, toned skin, pressing in gently before the next step. MEDITHERAPY builds this one to match that format rather than departing from it.
How does buying the Porethera Shot Exosome Spicule Serum 38ml here compare with a US retailer carrying the same name?
A US listing under the same product name can be a reformulated export version and rarely states which one it is selling. What we carry is the Korean-market MEDITHERAPY release, identified by its intact Korean barcode and batch code on the box rather than a relabeled export carton, so the unit you get matches what is sold on shelf in Korea.
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): Propanediol, Butylene Glycol, 1,2-Hexanediol, Niacinamide, Glycerin, Hydrolyzed Sponge, Methyl Gluceth-20, Panthenol, Hydroxyethyl Urea, Ammonium Acryloyldimethyltaurate/VP Copolymer, Carbomer, Arginine, Sodium Polyacrylate, Lauryl Dimethicone/Polyglycerin-3 Crosspolymer, Polymethylsilsesquioxane, C12-14 Alketh-12, Centella Asiatica Leaf Vesicles, Tetrahydroxypropyl Ethylenediamine, Tromethamine, Adenosine, Melia Azadirachta Leaf Extract, Malachite Extract, Ecklonia Cava Extract, Codium Tomentosum Extract, Gelidium Cartilagineum Extract, Hizikia Fusiforme Extract, PVM/MA Copolymer, Melia Azadirachta Flower Extract, Caramel, Dextrin
Ingredient list read from meditherapy.co.kr on 30 August 2026.
26 of 30 explained
- 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.
- 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.
- 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.
- 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.
- 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.
- Hydrolyzed Sponge active
- Hydrolyzed Sponge is processed freshwater sponge, which carries fine silica spicules. In a formula it works as a mild physical exfoliant.
- Methyl Gluceth-20 humectant
- Methyl Gluceth-20 is a sugar-derived humectant. It holds water in the outer layer of skin and gives a smooth, cushioned slip that plain glycerin does not.
- 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.
- Hydroxyethyl Urea humectant
- Hydroxyethyl Urea is a humectant that holds a lot of water for its size and stays comfortable at high levels. It is used where a formula needs to feel deeply hydrating without oil.
- 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.
- 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.
- Arginine amino acid
- Arginine is an amino acid that does two jobs here: it holds water in the outer layer of skin, and it neutralises acidic gelling agents, which is why it often stands in for a synthetic pH adjuster.
14 more explained
- Sodium Polyacrylate thickener
- Sodium Polyacrylate is a polymer that absorbs many times its weight in water. It thickens a formula and holds water in a gel against the skin.
- Polymethylsilsesquioxane silicone
- Polymethylsilsesquioxane is a silicone resin in fine sphere form. It soft-focuses the look of pores and lines and gives a smooth, powdery finish.
- C12-14 Alketh-12 emulsifier
- C12-14 Alketh-12 is a solubiliser used to keep oils and fragrance dissolved in a water-based formula.
- Centella Asiatica Leaf Vesicles plant extract
- The membrane-bound packets isolated from centella asiatica leaf. It is a recent Korean way of delivering the cica plant's own compounds, declared as vesicles rather than as a whole extract.
- Tetrahydroxypropyl Ethylenediamine pH adjuster
- An alkaline base that also binds metal ions. It raises pH and helps keep a formula stable, so it does two jobs at once.
- 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.
- 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.
- Melia Azadirachta Leaf Extract plant extract
- Melia Azadirachta is neem. Its leaf and flower extracts are long-standing Ayurvedic ingredients, and Korean formulas use them in products aimed at the look of congested, blemish-prone skin.
- Malachite Extract mineral
- Malachite is a green copper carbonate mineral. Its extract is used in a formula as a source of trace copper.
- Ecklonia Cava Extract plant extract
- Ecklonia Cava is gamtae, a brown seaweed harvested off Jeju. It carries phlorotannins, an antioxidant group found only in brown algae, and it is used as a marine antioxidant extract.
- Gelidium Cartilagineum Extract plant extract
- A red seaweed extract from the genus agar is made from. It thickens and hydrates and leaves a cushioned film.
- Hizikia Fusiforme Extract plant extract
- Tot, a Korean brown seaweed eaten as a side dish. Its extract is mineral rich and used as a hydrating marine ingredient.
- PVM/MA Copolymer film former
- PVM/MA Copolymer is a film-forming polymer used to hold a formula in place and, in a mask, to give the peel-off film its strength.
- Dextrin thickener
- Dextrin is a starch fragment used to thicken and to give a formula a light, powdery finish. It is also a common carrier for powdered extracts.
- Market
- Korean market, the version sold in Korea
- Made in
- Republic of Korea
- Volume
- 38 ml
- Category
- Serum & Ampoule
- 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.
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 it works
Hydrolyzed Sponge leads the ingredient panel on this serum. Hydrolyzed Sponge is processed freshwater sponge, which carries fine silica spicules. In a formula it works as a mild physical exfoliant. On this panel it sits alongside Niacinamide, Centella Asiatica Leaf Vesicles and Adenosine. 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.
How to use
- Apply to clean, toned skin, pressing in gently before the next step.
Worth knowing
- Patch test on the inner arm first, as with any new step added to a routine.
- Discontinue if irritation develops and check the ingredient list against any known sensitivity.
Complete the routine
- This itemMEDITHERAPY Porethera Shot Exosome Spicule Serum 38ml$75.00

- From the same Korean-market lineMEDITHERAPY SOKSAL GUA SHA$75.00

- An as-needed step, in place of the prep layerMEDITHERAPY Blue Layer Water Dome Mask 34g X 4ea$45.00

Total for 3 items$195.00
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MEDITHERAPY Porethera Shot Exosome Spicule Serum 38ml
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MEDITHERAPY, Korean-market original
MEDITHERAPY's Porethera Shot Exosome Spicule Serum 38ml, a Korean-market serum, 38ml to a unit.
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 the key actives in this formula, quoted from the medical sources linked beside each.
Centella can make your skin appear more hydrated, plumper and healthier.
Samantha Stein, PA-CDermatology physician assistant, Cleveland Clinic 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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