What does Adenosine do in this sheet mask?

Adenosine sits in the middle of the ingredient list. It is a wrinkle-care ingredient in Korea, included here for fine-line support rather than as a filler.

Is Tocopheryl Acetate also in this formula?

Tocopheryl Acetate sits in the middle of the ingredient list, the antioxidant vitamin E form supporting the rest of the formula against oxidation. It sits alongside Adenosine on MEDIHEAL's ingredient list for this product.

How is this sheet mask used in a routine?

Unfold the sheet and smooth it onto a cleansed face, adjusting it around the eyes, nose and mouth. Leave it on for 15 to 20 minutes, then remove and pat any remaining essence into the skin rather than rinsing it off. It works as an occasional, concentrated step layered over a completed routine, not a daily one.

Who is this sheet mask suited for?

Sensitive skin, Normal skin are the best fit for this sheet mask. Patch test on the inner arm before first full use, as with any new skincare product.

MEDIHEAL

Derma Layer Hand Mask 14ml X 5ea

Name: MEDIHEAL Derma Layer Hand Mask 14ml X 5ea
Brand: MEDIHEAL
SKU: 11525396681
Price: 27.5 USD
Availability: InStock

MEDIHEAL Derma Layer Hand Mask 14ml X 5ea carries six separate hyaluronic acid forms on its own ingredient panel, including Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, Hydroxypropyl Trimonium Hyaluronate.

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$27.50

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

Suited to: Sensitive skinNormal skinDry skin

Helps with: A formula built around AdenosineAn occasional, concentrated sheet mask stepA layered Korean routine

One-time purchase

$27.50

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How it works

The panel on this sheet mask names six forms of hyaluronic acid rather than one: Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, Hydroxypropyl Trimonium Hyaluronate, Hyaluronic Acid, Sodium Acetylated Hyaluronate. 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. On this panel it sits alongside Palmitic Acid, Hydrogenated Coconut Oil and Adenosine. Palmitic Acid is a saturated fatty acid present in skin's own lipids. It thickens a formula, stabilises the emulsion and softens skin.

Key benefits

Six forms of hyaluronic acid on one panel, not a single token inclusion
Palmitic Acid on the same panel, the formula's fatty acid
Hydrogenated Coconut Oil on the same panel, the formula's occlusive
Korean-market formula, with its Korean barcode and batch code intact on the box

Key actives

7Palmitic Acid

Palmitic Acid is a saturated fatty acid present in skin's own lipids. It thickens a formula, stabilises the emulsion and softens skin.

All products with Palmitic Acid

16Hydrogenated Coconut Oil

Coconut oil with hydrogen added, which raises its melting point and makes it a firm solid. It gives balms and sticks their body.

All products with Hydrogenated Coconut Oil

17Adenosine

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.

All products with Adenosine

35Sodium Hyaluronate

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.

All products with Sodium Hyaluronate

42Sodium Hyaluronate Crosspolymer

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.

All products with Sodium Hyaluronate Crosspolymer

43Hydrolyzed Hyaluronic Acid

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.

All products with Hydrolyzed Hyaluronic Acid

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48 of 50 explained

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.
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.
Cetyl Ethylhexanoate emollient: Cetyl Ethylhexanoate is a synthetic ester used as a dry-feeling emollient. It spreads easily, leaves a silky rather than oily finish, and helps disperse pigments and UV filters evenly.
Glyceryl Stearate emulsifier: Glyceryl Stearate is glycerin joined to stearic acid, and one of the most used emulsifiers in skincare. It holds oil and water together and thickens the result, and it softens skin at the same time.
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.
Propylene Glycol humectant: Propylene Glycol is a small glycol used as a humectant and solvent. It hydrates and helps actives dissolve; newer formulas often swap it for propanediol, which does the same job with a lighter feel.
Palmitic Acid fatty acid: Palmitic Acid is a saturated fatty acid present in skin's own lipids. It thickens a formula, stabilises the emulsion and softens skin.
Dimethicone silicone: Dimethicone is the most used cosmetic silicone. It forms a breathable film that smooths the surface, slows water leaving skin, and gives the slip that makes a primer or cream feel silky. It is inert and does not penetrate.
Sorbitan Sesquioleate emulsifier: Sorbitan Sesquioleate is a water-in-oil emulsifier and pigment disperser. Cleansing oils use it so water can be worked into the oil at the rinse.
Stearic Acid fatty acid: Stearic Acid is a saturated fatty acid from plant fats, and one of the three lipid classes skin's own barrier is built from. In a formula it thickens, stabilises the emulsion and can be turned into a soap-style cleanser by adding a base.
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.
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.

36 more explained

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.
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.
Butyrospermum Parkii (Shea) Butter emollient: Shea Butter is the fat pressed from the shea nut, rich in oleic and stearic acids and unsaponifiable plant sterols. It is a heavy emollient and partial occlusive, which is why it sits in balms and night creams rather than in essences.
Hydrogenated Coconut Oil occlusive: Coconut oil with hydrogen added, which raises its melting point and makes it a firm solid. It gives balms and sticks their body.
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.
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.
Argania Spinosa Kernel Oil emollient: Argan Oil is pressed from the argan kernel and is rich in oleic and linoleic acids plus vitamin E. It is a medium-weight emollient that absorbs reasonably fast.
Urea humectant: Urea is one of the substances skin makes to hold its own water, part of the natural moisturising factor. At low levels it hydrates; at high levels it also softens hard, thickened skin.
Tocopheryl Acetate antioxidant: Tocopheryl Acetate is a stable vitamin E ester that skin converts to tocopherol. It is used as an antioxidant and a light emollient and holds up better than plain vitamin E in a formula.
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.
Myristic Acid fatty acid: Myristic Acid is a saturated fatty acid used to thicken and, with a base added, to build the foam in a soap-style cleanser.
Hydrolyzed Keratin protein: Hydrolyzed Keratin is keratin, the protein hair and nails are built from, cut into fragments small enough to dissolve. In a formula it is a humectant and a smoothing film former.
Arachidic Acid fatty acid: Arachidic Acid is a long-chain saturated fatty acid used to thicken and stabilise a formula.
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.
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.
Oleic Acid fatty acid: Oleic Acid is the main fatty acid in olive and many nut oils. It is a rich emollient that softens skin and can feel heavy on skin prone to congestion.
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.
Simmondsia Chinensis (Jojoba) Seed Oil emollient: Jojoba Oil is a liquid wax rather than a true oil, and its structure is close to human sebum, which is why it absorbs so readily. It is an emollient that leaves a soft, non-greasy finish.
Benzyl Glycol preservative booster: Benzyl Glycol is a solvent that also makes a formula less hospitable to microbes, so it appears in preservative blends built without parabens.
Lactic Acid exfoliant: Lactic Acid is a larger AHA than glycolic, so it works nearer the surface and is easier on skin, and it is a humectant as well as an exfoliant. It is the AHA of choice for dry skin.
Hydrolyzed Glycosaminoglycans humectant: Hydrolyzed Glycosaminoglycans are short fragments of the sugar chains that sit between cells in skin, hyaluronic acid among them. They act as humectants and give a cushioned feel.
Sodium Hyaluronate 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.
Lavandula Angustifolia (Lavender) Extract plant extract: Lavender extract, the water-soluble fraction rather than the essential oil. It is used as a conditioning extract and carries a light lavender scent.
Rosmarinus Officinalis (Rosemary) Extract plant extract: Rosemary extract with the plant part unstated. Rosemary carries rosmarinic and carnosic acid, and it is also used to keep the oils in a formula from going rancid.
Anthemis Nobilis Flower Extract plant extract: Roman chamomile flower extract. It carries flavonoids and is one of the classic plant ingredients in formulas aimed at the look of reddened skin.
Melaleuca Alternifolia (Tea Tree) Leaf Extract plant extract: Tea Tree Leaf Extract is the water-based extract rather than the essential oil, so it is far milder and much less aromatic. It is used in formulas for blemish-prone skin.
Mentha Piperita (Peppermint) Leaf Extract plant extract: Peppermint leaf extract, the water-based extract rather than the essential oil, so it carries far less menthol. It is used as a refreshing herbal extract.
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.
Sodium Hyaluronate Crosspolymer 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.
Hydrolyzed Hyaluronic Acid 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.
Raspberry Ketone fragrance component: Raspberry Ketone is the compound that gives raspberries their smell. On a list it is an aromatic ingredient rather than a functional one.
Hyaluronic Acid 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.
Sodium Acetylated Hyaluronate 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.
Fragrance fragrance: Fragrance, or Parfum, is a single declaration standing for a whole scent blend, which can be dozens of materials. Regulators allow it as a trade secret, so a list showing only this word does not say what the scent is made of. It is the most common trigger named by people with reactive skin.
Benzyl Benzoate fragrance component: Benzyl Benzoate is a faintly balsamic aromatic that also acts as a fixative, holding a fragrance on skin longer. It is one of the 26 declarable fragrance components.
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.

Inside the formula

Ingredients declared

Last

Fragrance on the list

7Palmitic Acid16Hydrogenated Coconut35Sodium Hyaluronate42Sodium Hyaluronate

7Palmitic Acid
16Hydrogenated Coconut
35Sodium Hyaluronate
42Sodium Hyaluronate

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

How to use

Unfold the sheet and smooth it onto a cleansed face, adjusting it around the eyes, nose and mouth. Leave it on for 15 to 20 minutes, then remove and pat any remaining essence into the skin rather than rinsing it off.

Worth knowing

Patch test on the inner arm before first full use, as with any new skincare product.

Complete the routine

This itemMEDIHEAL Derma Layer Hand Mask 14ml X 5ea$27.50
The treatment step of this routineMEDIHEAL Tea Tree Calming Barrier Ampoule 50ml$37.50
Cleanse first, so the next step meets bare skinMEDIHEAL Teatree Trouble Calming Cleanser 120ml$15.00

Total for 3 items$80.00

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MEDIHEAL Derma Layer Hand Mask 14ml X 5ea

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MEDIHEAL, Korean-market original

MEDIHEAL's Derma Layer Hand Mask 14ml X 5ea, sourced for the Korean market.

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 skin care, quoted from the medical sources linked beside each.

Hyaluronic acid helps bind water to collagen, which traps water in the skin. That helps make the skin more plump and full-looking.
Samantha Stein, PA-CDermatology physician assistant, 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