Sungboon Editor
Deep Collagen CICA Teatree Soothing Mask$11.76Hyaluronic Acid Mask
ETUDE's Hyaluronic Acid Mask carries sodium hyaluronate alongside ceramide NP, allantoin and beta-glucan, worn in place of the serum step for fifteen to twenty minutes in the evening, then pressed in rather than rinsed off.
No reviews yet1 ea
- 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 Sodium Hyaluronate in a sheet maskRoutines that want Sodium Hyaluronate and Allantoin in one stepFilling the sheet mask step with a Korean-market formulaAnyone who wants the Sodium Hyaluronate sheet mask sold on Korean shelves
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
How it works
The Hyaluronic Acid Mask is a 1ea sheet mask, used after toner, in place of your serum step, in the evening. The humectant it is built around is Sodium Hyaluronate, named nineteenth on its own ingredient list. The same list carries Allantoin, Dipotassium Glycyrrhizate and Ceramide NP, so the humectant is not the only thing on it worth naming. How much of the Sodium Hyaluronate stays on the skin, and for how long, is decided by the sheet mask format rather than by the list alone. This is the Original Korean Formula, the sheet mask ETUDE sells in Korea, Sodium Hyaluronate and all.
Key benefits
- Sodium Hyaluronate, the humectant this sheet mask is built around
- Allantoin and Dipotassium Glycyrrhizate on the same list, actives
- Ceramide NP on the same list, a barrier lipid
- Biosaccharide Gum-1 on the same list, a polysaccharide
- Beta-Glucan and Glycyrrhiza Glabra (Licorice) Root Extract further down the same list
- Camellia Sinensis Leaf Extract and Zingiber Officinale (Ginger) Root Extract further down the same list
Inside the formula
Inside the formula
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 Sodium Hyaluronate and not three changes at once.
Is this the Korean-market sheet mask or a US version?
The Korean-market one, Sodium Hyaluronate and all. We match this sheet mask to its Korean barcode before it reaches the shelf, which is the check that tells you which market release you are holding.
Does this sheet mask 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 sheet mask is not the one.
What else is on the list besides Sodium Hyaluronate?
Allantoin, Dipotassium Glycyrrhizate and Ceramide NP. The order they are printed in on this sheet mask's panel is the order on the box, so you can see where Sodium Hyaluronate sits relative to them. Further down the same panel: Biosaccharide Gum-1, Beta-Glucan and Glycyrrhiza Glabra (Licorice) Root Extract.
Not on the ingredient list below: fragrance or parfum, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (35): Water, Dipropylene Glycol, Methylpropanediol, Alcohol, Glycerin, Hydroxyethyl Urea, Biosaccharide Gum-1, Butylene Glycol, 1,2-Hexanediol, Arginine, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Allantoin, Hydroxyethylcellulose, Glycyrrhiza Glabra (Licorice) Root Extract, Camellia Sinensis Leaf Extract, Zingiber Officinale (Ginger) Root Extract, Coptis Japonica Root Extract, Dehydroacetic Acid, Sodium Hyaluronate(7,000㎍), Disodium EDTA, Dipotassium Glycyrrhizate, Caprylic/Capric Triglyceride, Polyglyceryl-10 Laurate, Polyglyceryl-10 Myristate, Boswellia Serrata Gum, Hydrogenated Lecithin, Citrus Limon (Lemon) Fruit Extract, Rosmarinus Officinalis (Rosemary) Leaf Oil, Beta-Glucan, Citrus Paradisi (Grapefruit) Peel Oil, Geranium Maculatum Oil, Melaleuca Alternifolia (Tea Tree) Leaf Oil, Ceramide NP, Phytosteryl/Octyldodecyl Lauroyl Glutamate, Limonene
Ingredient list read from incidecoder.com on 30 August 2026.
35 of 35 explained
- 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.
- 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.
- 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.
- Alcohol solvent
- Alcohol here means ethanol. It dissolves ingredients water cannot, evaporates fast so a formula sets quickly and does not feel heavy, and thins texture. In quantity it can leave dry or reactive skin feeling tight, which is why many Korean formulas avoid it and some deliberately use it for a fast, weightless finish.
- 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.
- 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.
- Biosaccharide Gum-1 polysaccharide
- Biosaccharide Gum-1 is a fermentation-derived sugar polymer that binds to skin and holds a moisture film in place. It gives a silky, non-tacky feel.
- 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.
- 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.
- Acrylates/C10-30 Alkyl Acrylate Crosspolymer thickener
- This is a carbomer relative with fatty side chains, so it thickens and stabilises an emulsion at the same time. It gives a light gel-cream body rather than a heavy one.
- 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.
23 more explained
- Hydroxyethylcellulose thickener
- Hydroxyethylcellulose is a cellulose thickener that builds a clear, smooth gel and holds the rest of the formula in suspension.
- Glycyrrhiza Glabra (Licorice) Root Extract plant extract
- Licorice Root Extract carries glabridin and liquiritin. It is one of the classic plant ingredients used for the look of uneven tone and redness, and it appears in almost every brightening formula that avoids synthetic actives.
- 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.
- Zingiber Officinale (Ginger) Root Extract plant extract
- Ginger root extract. It carries gingerols, gives a warming sensory character, and is used as an antioxidant-rich herbal extract.
- Coptis Japonica Root Extract plant extract
- Coptis Japonica is a traditional East Asian medicinal root, bright yellow from its berberine content. In skincare its extract is used for the look of congested, oily skin.
- Dehydroacetic Acid preservative
- A preservative that works best in acidic formulas and is almost always paired with benzyl alcohol. It is one of the standard systems in products built without parabens.
- Sodium Hyaluronate(7,000㎍) 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.
- 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.
- 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.
- Caprylic/Capric Triglyceride emollient
- Caprylic/Capric Triglyceride is the light fraction of coconut oil, with the heavy parts removed. It is the workhorse emollient of modern formulas: it softens skin, dissolves oil-soluble actives and absorbs without the greasy weight of a whole plant oil.
- Polyglyceryl-10 Laurate emulsifier
- Polyglyceryl-10 Laurate is a sugar-derived emulsifier and solubiliser, mild enough to be a standard choice in Korean essences. It dissolves small amounts of oil into water without any tightening feel.
- Polyglyceryl-10 Myristate emulsifier
- Polyglyceryl-10 Myristate is a mild sugar-derived emulsifier used to keep oil dispersed in a watery formula.
- Boswellia Serrata Gum plant extract
- Frankincense resin, tapped from the boswellia tree. It carries boswellic acids and is used as a conditioning resin with its own scent.
- 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.
- Citrus Limon (Lemon) Fruit Extract plant extract
- Lemon fruit extract, carrying citric acid, sugars and flavonoids. It is the water-based fruit extract rather than the peel oil, so it brings the fruit acids without the aromatic terpenes.
- Rosmarinus Officinalis (Rosemary) Leaf Oil fragrance component
- Rosemary Leaf Oil is an essential oil carrying camphor and cineole. It scents a formula and is a stronger aromatic than most.
- 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.
- Citrus Paradisi (Grapefruit) Peel Oil fragrance component
- Grapefruit peel oil, an essential oil pressed from the rind. It scents a formula, and citrus peel oils can make skin more sensitive to sun.
- Geranium Maculatum Oil fragrance component
- Wild geranium oil, an essential oil with a soft rose-like scent. It is used to perfume a formula.
- Melaleuca Alternifolia (Tea Tree) Leaf Oil fragrance component
- Tea Tree Leaf Oil is an essential oil from an Australian shrub, carrying terpinen-4-ol. Korean formulas use it in products aimed at blemish-prone skin; it is potent, aromatic, and one of the essential oils most likely to bother reactive skin.
- 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.
- Phytosteryl/Octyldodecyl Lauroyl Glutamate barrier lipid
- An ester built from plant sterols, a fatty alcohol and the amino acid glutamic acid. It mimics the lipids between skin cells and helps hold water in.
- 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
- EAN (barcode)
- 8809820699287
- Made in
- Republic of Korea
- Volume
- 1 ea
- Category
- Mask
- Actives
- Allantoin, Beta-Glucan, Ceramide NP, Green Tea, Licorice Root, Sodium Hyaluronate, Tea Tree, Urea
- 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 Hyaluronic Acid Mask after toner, in place of your serum step, in the evening.
- Apply the mask sheet on your face evenly. Remove after 10 to 20 minutes and then gently massage for better absorption.
- Take it off at the time printed on the pack, pat in the essence left behind rather than rinsing, then go straight to your moisturizer.
- Two or three evenings a week is a normal rhythm. Do not leave it on past its time; a sheet that has gone dry takes moisture back off the face as it goes.
Worth knowing
- Patch test this sheet mask on a small area and wait a day before using it more widely, especially with Sodium Hyaluronate on the list.
- This list names Limonene, so skip it if fragrance components are something you avoid.
Complete the routine
- This itemETUDE Hyaluronic Acid Mask$2.34

- Prep after cleansing, before the treatment stepETUDE HOUSE Wonder Pore Freshner 500ml$32.50

- Seal the routine in as the last stepETUDE Soonjung 2x Barrier Intensive Cream 60ml$22.50

Total for 3 items$57.34
Reviews
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ETUDE Hyaluronic Acid Mask
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ETUDE, Korean-market original
The Original Korean Formula sheet mask from ETUDE, 1ea formulated with Sodium Hyaluronate and Allantoin, shipped from California or direct from Korea.
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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