Where does this sheet mask go in my routine?

After toner, in place of your serum step, in the evening. Toner goes on before it, and the rest of the routine goes on after you take the sheet mask off. 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.

What else is on the list besides Niacinamide?

Methyl Diisopropyl Propionamide, Adenosine and Dipotassium Glycyrrhizate. The order they are printed in on this sheet mask's panel is the order on the box, so you can see where Niacinamide sits relative to them. Further down the same panel: Allantoin, Madecassic Acid and Asiaticoside.

Centellian24

Madeca Lab Hyal Waterfull Glow Gel Mask 1ea

Name: Centellian24 Madeca Lab Hyal Waterfull Glow Gel Mask 1ea
Brand: Centellian24
Price: 17.99 USD
Availability: OutOfStock

Centellian24 Madeca Lab Hyal Waterfull Glow Gel Mask is a 1ea sheet mask whose ingredient list carries Niacinamide alongside Methyl Diisopropyl Propionamide and Adenosine.

Reviewed by Nurcan Saglam, licensed dermo-cosmetic expert (Paris)

No reviews yet

$17.99

1ea

Korean-market formula
Ships from California or direct from Korea
Korean barcode and batch code intact

Suited to: Dry skinCompromised barrierDehydrated skinSensitive skin

Helps with: Shoppers looking for Niacinamide in a sheet maskRoutines that want Niacinamide and Methyl Diisopropyl Propionamide in one stepFilling the sheet mask step with a Korean-market formula

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Key benefits

Niacinamide, the active this sheet mask is built around
Methyl Diisopropyl Propionamide, Adenosine, Dipotassium Glycyrrhizate and Allantoin on the same list, actives
Madecassic Acid and Asiaticoside further down the same list
Asiatic Acid and Ceramide NP 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 sheet mask's own ingredient list it is named fourth.

All products with Niacinamide

19Adenosineactive

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. The panel names it nineteenth on this sheet mask's list, beside Niacinamide.

All products with Adenosine

24Dipotassium Glycyrrhizateactive

Dipotassium Glycyrrhizate is a water-soluble salt derived from licorice root. The panel names it twenty-fourth on this sheet mask's list, beside Niacinamide.

All products with Dipotassium Glycyrrhizate

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 sheet mask's list, alongside Niacinamide.

All products with Allantoin

Methyl Diisopropyl Propionamideactive

A synthetic cooling agent that gives the cool feeling of menthol without the mint smell. It is used where a formula wants the sensation but not the scent. The panel names it eighteenth on this sheet mask's list, beside Niacinamide.

All products with Methyl Diisopropyl Propionamide

Inside the formula

Ingredients declared

No fragrance

on the list

4Niacinamide19Adenosine24Dipotassium Glycyrrhizate

4Niacinamide
19Adenosine
24Dipotassium Glycyrrhizate

Where each key active sits on the declared ingredient list, by entry number. Position is proportion: the further forward, the larger its share.

1 of 4

Centellian24 Madeca Lab Hyal Waterfull Glow Gel Mask 1ea

52 of 55 explained

Purified 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.
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.
Tri-propylene glycol solvent: Tripropylene Glycol is a glycol used mainly as a solvent, keeping the rest of the formula dissolved and the texture fluid.
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.
Polyglycerin-3 humectant: Polyglycerin-3 is a short chain of glycerin units used as a gentler, less sticky humectant. It also helps oils and water stay blended.
Irish moss plant extract: Chondrus Crispus is Irish moss, a red seaweed. It is loaded with carrageenan, so it hydrates and thickens at once, and it leaves a cushioned, slippery film.
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.
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.
Trehalose humectant: Trehalose is a sugar that some desert plants use to survive drying out. In skincare it is a humectant that holds water in the outer layer and helps a formula feel comfortable rather than tight.
Carrageenan thickener: Carrageenan is a red-seaweed polysaccharide that thickens and forms a moisture-holding film. It gives a formula a slippery, cushioned body.

40 more explained

Potassium chloride mineral: Potassium Chloride is a mineral salt used to bring a formula closer to the salt balance of skin, most often as part of a sea-water or mineral-water blend.
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.
Glucomannan thickener: Glucomannan is a konjac root polysaccharide. It thickens, holds a great deal of water and leaves a smooth, cushioned film.
Sucrose humectant: Sucrose is table sugar, used here as a humectant. It draws water into the outer layer of skin and, in a scrub, doubles as the physical grain.
Methyl diisopropylpropionamide active: A synthetic cooling agent that gives the cool feeling of menthol without the mint smell. It is used where a formula wants the sensation but not the scent.
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.
Trisodium ethylenediamine disuccinate chelator: A readily biodegradable chelator used in place of EDTA. It ties up trace metal ions in the water so they cannot spoil the formula.
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.
Sodium hyaluronate (100.01 ppm) humectant: Sodium Hyaluronate is the salt of hyaluronic acid, and it is what most products labelled hyaluronic actually contain. The salt dissolves more readily and the molecule is smaller, so it sits in the outer layer of skin rather than only on top of it.
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.
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.
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.
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.
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.
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.
Polyglyceryl-10 oleate emulsifier: Polyglyceryl-10 Oleate is a mild sugar-derived emulsifier and solubiliser used where a formula must stay clear.
Madecassic acid (20 ppm) 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.
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.
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.
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.
Fig extract plant extract: Fig Fruit Extract carries fruit sugars, mild acids and a protein-digesting enzyme. It is used as a hydrating extract with a light smoothing effect.
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.
Molokhia leaf extract plant extract: Jute mallow leaf extract. The leaf is notably mucilaginous, so the extract holds water and gives a slippery feel.
Glycine amino acid: Glycine is the smallest amino acid and one of the free amino acids skin holds to keep water in the outer layer. In a formula it is a humectant and a mild buffer.
Barley extract plant extract: Barley extract, carrying beta-glucan, amino acids and B vitamins. It hydrates and is used as a conditioning grain extract.
Caprylyl glycol preservative booster: Caprylyl Glycol is a glycol that conditions skin and, more importantly, strengthens a preservative system so less of the traditional preservative is needed. It appears in most modern formulas built without parabens.
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.
Ceramide NP barrier lipid: Ceramide NP is the most used cosmetic ceramide, the same class of lipid that makes up roughly half the mortar between cells in the outer layer of skin. Added to a cream it slots into that structure, which is why ceramide formulas feel less leaky rather than merely greasy.
Dimethylsiloxane hyaluronate (15 ppb) humectant: Dimethylsilanol Hyaluronate is hyaluronic acid joined to a silicon-based group. It hydrates and leaves a smoother, silkier finish than hyaluronic acid alone.
Hydrolyzed hyaluronic acid (15 ppb) humectant: 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.
Hyaluronic acid (10 ppb) humectant: Hyaluronic Acid is a sugar chain the body already makes, and one gram of it can hold several litres of water. In a formula it is a humectant that pulls water to the surface of skin and holds it in a film, which is what makes skin look plumper while it is there.
Potassium hyaluronate (10 ppb) humectant: Potassium Hyaluronate is another salt of hyaluronic acid, used for the same reason as the sodium form: it dissolves easily and holds a large amount of water in the outer layer of skin.
Sodium hyaluronate crosspolymer (8 ppb) humectant: Sodium Hyaluronate Crosspolymer is hyaluronic acid linked into a mesh. It holds water in a soft gel on the surface rather than sinking in, and it releases that water slowly through the day.
Hydroxypropyltrimonium hyaluronate (8 ppb) humectant: Hydroxypropyltrimonium Hyaluronate carries a positive charge, and skin carries a slight negative one, so it is attracted to the surface and stays through rinsing. It is the hyaluronic used where a formula gets washed off.
Sodium hyaluronate dimethylsilane (5 ppb) humectant: Hyaluronic acid bonded to a silane group, a silicone-compatible form of the humectant. It hydrates and leaves a smooth finish.
Sodium acetylated hyaluronate (4 ppt) humectant: Sodium Acetylated Hyaluronate is hyaluronic acid modified to be part oil-loving, so it clings to skin instead of rinsing away. Formulators call it the one that stays put.
Sodium palmitoyl proline amino acid: The amino acid proline with a fatty tail attached, which lets it work at the boundary between oil and water. It conditions and helps hold an emulsion together.
Lotus flower extract plant extract: Lotus flower extract, from the same sacred lotus as the leaf. It carries flavonoids and sugars and is used as a conditioning, hydrating extract.

How it works

The Madeca Lab Hyal Waterfull Glow Gel Mask is a 1ea sheet mask, used after toner, in place of your serum step, in the evening. The active it is built around is Niacinamide, named fourth on its own ingredient list. The same list carries Methyl Diisopropyl Propionamide, Adenosine and Dipotassium Glycyrrhizate, 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 sheet mask format rather than by the list alone. Centellian24 sells this Niacinamide sheet mask in Korea, and this is that version.

How to use

Use it in the evening after toner, in place of your serum step.
Lay the sheet over clean skin and press the edges down so the gel makes full contact.
Leave it twenty to thirty minutes, peel it off and press the remaining gel in without rinsing.
Once or twice a week. Do not leave it on past the point where the gel has gone dry.

Worth knowing

Patch test this sheet mask on a small area and wait a day before using it more widely, especially with Niacinamide on the list.
Introduce this sheet mask on its own for the first week, so anything your skin does is traceable to the Niacinamide rather than to three changes at once.

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Centellian24 Madeca Lab Hyal Waterfull Glow Gel Mask 1ea

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Centellian24, Korean-market original

Hydrogel glow mask, 1 ea, with Niacinamide, Panthenol and ten hyaluronate forms.

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 skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.

It contains liquiritin, an active compound that helps to disperse and remove existing melanin in the skin.
Jennifer Chwalek, MDDermatologist, Byrdie
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

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