MAXCLINIC
Pro Hyaluron Toner 320ml$65.00Centellian24
Madeca Relief Toner 300ml
Centella asiatica extract is the first ingredient of this 300 ml Centellian24 toner and water does not appear until twenty-seventh, with niacinamide fourth ahead of a run of calming botanicals: purslane, rosemary, chamomile, beebalm and feverfew.
No reviews yet300 ml
$8.33 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- Dehydrated skinSensitive skinSkin that has lost bounce
- Helps with
- Shoppers looking for Niacinamide in a tonerRoutines that want Niacinamide and Adenosine in one stepFilling the toner step with a Korean-market formula
In stock. Arrives in 3 to 7 business days
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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
- Niacinamide, the active this toner is built around
- Adenosine, Allantoin, Madecassic Acid and Asiaticoside on the same list, actives
- Asiatic Acid and Soluble Proteoglycan further down the same list
- Beta-Glucan and Centella Asiatica Extract further down the same list
- Niacinamide named fourth on the manufacturer list printed on this page
Key actives
4Niacinamideactive
Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. On this toner's own ingredient list it is named fourth.
20Adenosineactive
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 twentieth on this toner's list, alongside Niacinamide.
25Allantoinactive
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-fifth on this toner's list, alongside Niacinamide.
29Madecassic Acidactive
Madecassic Acid is the fourth centella triterpene. A list that names all four is telling you the extract was standardised rather than simply pressed, which is the difference between a cica claim and a cica formula. It is named twenty-ninth on this toner's list, alongside Niacinamide.
30Asiaticosideactive
Asiaticoside is one of the four active triterpenes isolated from centella and the most studied of them. Korean formulas name it separately when they want to show which fraction of the plant they standardised. It is named thirtieth on this toner's list, alongside Niacinamide.
Inside the formula
Inside the formula
- 4Niacinamide
- 20Adenosine
- 25Allantoin
- 29Madecassic Acid
Where each key active sits on the declared ingredient list, by entry number. Position is proportion: the further forward, the larger its share.
Where does this toner go in my routine?
Straight after cleansing, morning and evening, while the face is still damp. Anything thinner than a toner 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 Niacinamide and not three changes at once.
Does this toner contain fragrance?
Yes. The ingredient list names Limonene. It sits on the panel printed on this page, so you can read the position for yourself before you buy. If fragrance components are something you avoid, this toner is not the one.
What else is on the list besides Niacinamide?
Adenosine, Allantoin and Madecassic Acid. The order they are printed in on this toner's panel is the order on the box, so you can see where Niacinamide sits relative to them. Further down the same panel: Asiaticoside, Asiatic Acid and Soluble Proteoglycan.
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (34): Centella Asiatica Extract, Dipropylene Glycol, 1,2-Hexanediol, Niacinamide, Methylpropanediol, Portulaca Oleracea Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Chamomilla Recutita (Matricaria) Flower Extract, Monarda Didyma Leaf Extract, Chrysanthemum Parthenium (Feverfew) Extract, Salvia Officinalis (Sage) Leaf Water, Citrus Aurantium Dulcis (Orange) Peel Oil, Olea Europaea (Olive) Fruit Oil, Centella Asiatica Oil, Hydrogenated Lecithin, Raffinose, Octyldodeceth-16, Xanthan Gum, Beta-Glucan, Adenosine, Carbomer, Disodium EDTA, Glycerin, Tromethamine, Allantoin, Water, Soluble Proteoglycan, Polyglyceryl-10 Oleate, Madecassic Acid, Asiaticoside, Asiatic Acid, Ethylhexylglycerin, Hydroxyacetophenone, Limonene
Ingredient list read from inkeedecoder.com on 10 September 2026.
32 of 34 explained
- Centella Asiatica Extract plant extract
- Centella Asiatica is the plant behind the whole cica category, sold as gotu kola or Madagascar centella. Its extract is the anchor of Korean formulas built for easily reddened skin, and its work is done by four triterpenes: asiaticoside, madecassoside, asiatic acid and madecassic acid.
- 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.
- 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.
- Methylpropanediol humectant
- Methylpropanediol is a small glycol used to hydrate and to help water-soluble actives penetrate the outer layer of skin more evenly. It leaves almost no tack, which suits watery textures.
- Portulaca Oleracea Extract plant extract
- Portulaca Oleracea is purslane. Its extract is unusually high in omega-3 fatty acids and antioxidants for a plant, and Korean formulas use it for the look of reddened, reactive skin.
- Rosmarinus Officinalis (Rosemary) Leaf Extract plant extract
- Rosemary Leaf Extract carries rosmarinic and carnosic acids, both effective antioxidants. It is often there to keep the oils in a formula from going rancid.
- Chamomilla Recutita (Matricaria) Flower Extract plant 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.
- Monarda Didyma Leaf Extract plant extract
- Bee balm leaf extract, a mint family plant. The leaf carries aromatic terpenes and flavonoids and is used as a conditioning botanical with a faint scent.
- Citrus Aurantium Dulcis (Orange) Peel Oil fragrance component
- Sweet Orange Peel Oil is a citrus essential oil carrying limonene. It scents a formula, and limonene is one of the components EU labelling names separately.
- Olea Europaea (Olive) Fruit Oil emollient
- Olive Fruit Oil is high in oleic acid and plant sterols. It is a rich emollient that suits dry skin and is heavy enough that blemish-prone skin often does not get on with it.
- Centella Asiatica Oil plant extract
- The oil-soluble fraction of centella, carried in a plant oil. It brings the fat-soluble part of the plant that a water extract leaves behind.
20 more explained
- Hydrogenated Lecithin emulsifier
- Hydrogenated Lecithin is lecithin with its unsaturated bonds filled in, which makes it far more stable. It emulsifies and is the standard shell for the liposomes that carry actives into the outer layer of skin.
- Raffinose sugar
- Raffinose is a three-unit plant sugar found in beans and beetroot. It holds water in the outer layer of skin and helps a formula stay comfortable as it dries down.
- Octyldodeceth-16 emulsifier
- An ethoxylated branched fatty alcohol. It emulsifies and also gives a formula a soft, cushioned slip.
- Xanthan Gum thickener
- Xanthan Gum is a polysaccharide made by fermenting sugar. It thickens a watery formula into a gel and holds the whole thing in suspension so nothing separates. Too much of it and a serum turns stringy, which is why it appears in fractions of a percent.
- Beta-Glucan polysaccharide
- 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.
- 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.
- 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.
- Disodium EDTA chelator
- EDTA is a chelator: it locks up trace metal ions from water and packaging that would otherwise turn a formula cloudy, off-colour or rancid. It does nothing to skin and appears at a fraction of a percent.
- 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.
- 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.
- 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.
- 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.
- Soluble Proteoglycan protein
- A proteoglycan is a protein with sugar chains attached, the same architecture as the water-holding molecules in cartilage and skin. Made soluble, it is used as a humectant and conditioning protein.
- Polyglyceryl-10 Oleate emulsifier
- Polyglyceryl-10 Oleate is a mild sugar-derived emulsifier and solubiliser used where a formula must stay clear.
- Madecassic Acid active
- Madecassic Acid is the fourth centella triterpene. A list that names all four is telling you the extract was standardised rather than simply pressed, which is the difference between a cica claim and a cica formula.
- Asiaticoside active
- Asiaticoside is one of the four active triterpenes isolated from centella and the most studied of them. Korean formulas name it separately when they want to show which fraction of the plant they standardised.
- Asiatic Acid active
- Asiatic Acid is the third of centella's four triterpenes and the aglycone form, meaning it has no attached sugar. It is oil soluble, so it turns up in cica creams and balms more than in watery layers.
- Ethylhexylglycerin preservative booster
- Ethylhexylglycerin softens skin and boosts a preservative system, which is why it is nearly always sitting beside phenoxyethanol or 1,2-hexanediol. It also cuts down the odour bacteria produce, so it turns up in deodorising products.
- 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.
- Limonene fragrance component
- Limonene is the citrus-peel aromatic. It appears here because EU labelling requires 26 fragrance components to be named individually rather than hidden inside "fragrance", and it is one of them.
- Market
- Korean market, the version sold in Korea
- Made in
- Republic of Korea
- Volume
- 300 ml
- Category
- Toner
- 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
The Madeca Relief Toner is a 300ml toner, used straight after cleansing, morning and evening, while the face is still damp. The active it is built around is Niacinamide, named fourth on its own ingredient list. The same list carries Adenosine, Allantoin and Madecassic Acid, so the active is not the only thing on it worth naming. How much of the Niacinamide stays on the skin, and for how long, is decided by the toner format rather than by the list alone. Centellian24 sells this Niacinamide toner in Korea, and this is that version.
How to use
- Pat or sweep onto clean skin right after cleansing, morning and night, before serum or moisturizer, to prep the skin for what follows.
Worth knowing
- Patch test this toner on a small area and wait a day before using it more widely, especially with Niacinamide on the list.
- This list names Limonene, so skip it if fragrance components are something you avoid.
Complete the routine
- This itemCentellian24 Madeca Relief Toner 300ml$25.00

- Prep after cleansing, before the treatment stepCENTELLIAN24 Madeca Cica Mist 100ml$22.50

- Cleanse first, so the next step meets bare skinCENTELLIAN24 Madeca Enzyme Cleansing Powder 60g$27.50

Total for 3 items$75.00
Reviews
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CENTELLIAN24 Madeca Relief Toner 300ml
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
Centellian24, Korean-market original
Toner, 300 ml, with Centella Asiatica Extract and Niacinamide.
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.
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 Centella can make your skin appear more hydrated, plumper and healthier.
Samantha Stein, PA-CDermatology physician assistant, Cleveland Clinic
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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