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 Hydrolyzed Hyaluronic Acid and not three changes at once.

What else is on the list besides Hydrolyzed Hyaluronic Acid?

Methyl Diisopropyl Propionamide, Caffeine and Coptis Japonica Root Extract. The order they are printed in on this sheet mask's panel is the order on the box, so you can see where Hydrolyzed Hyaluronic Acid sits relative to them. Further down the same panel: Theobroma Cacao (Cocoa) Extract, Laminaria Japonica Extract and Dioscorea Japonica Root Extract.

Anua

8 Hyaluronic Acid Catechin Cool Slim Mask 24ml X 10ea

Name: Anua 8 Hyaluronic Acid Catechin Cool Slim Mask 24ml X 10ea
Brand: Anua
SKU: 12333740517
Price: 40.0 USD
Availability: InStock

Anua 8 Hyaluronic Acid Catechin Cool Slim Mask is a sheet mask from Anua built around Hydrolyzed Hyaluronic Acid.

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

No reviews yet

$40.00

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

Suited to: Normal skinDry or dehydrated skinCombination skinSensitized or easily reactive skin

Helps with: Everyday hydrationA layered Korean routineDullness or uneven texture

One-time purchase

$40.00

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$36.00

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How it works

The 8 Hyaluronic Acid Catechin Cool Slim Mask is a sheet mask, used after toner, in place of your serum step, in the evening. The humectant it is built around is Hydrolyzed Hyaluronic Acid, named thirty-first on its own ingredient list. The same list carries Methyl Diisopropyl Propionamide, Caffeine and Coptis Japonica Root Extract, so the humectant is not the only thing on it worth naming. How much of the Hydrolyzed Hyaluronic Acid stays on the skin, and for how long, is decided by the sheet mask format rather than by the list alone. Anua sells this Hydrolyzed Hyaluronic Acid sheet mask in Korea, and this is that version.

Key benefits

Hydrolyzed Hyaluronic Acid, the humectant this sheet mask is built around
Methyl Diisopropyl Propionamide and Caffeine on the same list, actives
Coptis Japonica Root Extract and Theobroma Cacao (Cocoa) Extract on the same list, plant extracts
Laminaria Japonica Extract and Dioscorea Japonica Root Extract further down the same list
Ulmus Davidiana Root Extract and Viola Mandshurica Flower Extract further down the same list
Hydrolyzed Hyaluronic Acid named thirty-first on the manufacturer list printed on this page

How to use

Use this product AM and/or PM, as the its place in a routine. Pat or smooth it on rather than rubbing, and give it a moment to settle before layering the next step.

1 of 4

50 of 55 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.
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.
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.
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.
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.
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.
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.
Octyldodeceth-16 emulsifier: An ethoxylated branched fatty alcohol. It emulsifies and also gives a formula a soft, cushioned slip.
Inositol humectant: Inositol is a sugar-like compound found in the body. In skincare it is a humectant that also helps a formula feel conditioning rather than merely wet.
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.

38 more explained

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.
Glyceryl Glucoside humectant: Glyceryl Glucoside is glycerin bound to glucose, from the resurrection plant. It is a humectant that holds water in the outer layer of skin.
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.
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.
Methyl Diisopropyl Propionamide 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.
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.
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.
Caffeine active: Caffeine constricts small blood vessels near the surface, which is why eye products use it for the look of puffiness and shadow. It is water soluble and works only while it is on the skin.
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.
Theobroma Cacao (Cocoa) Seed Extract plant extract: Cocoa Extract carries polyphenols and a little caffeine. It is used as an antioxidant plant extract and gives a faint warm tint.
Laminaria Japonica Extract plant extract: Laminaria Japonica is kombu kelp. Its extract carries alginates, minerals and iodine, and it is used as a hydrating, mineral-rich ingredient.
Dioscorea Japonica Root Extract plant extract: Dioscorea Japonica is Japanese wild yam, whose root is naturally slippery with mucilage. Its extract hydrates and leaves a cushioned feel.
Ulmus Davidiana Root Extract plant extract: Ulmus Davidiana is Japanese elm, whose inner bark yields a naturally slippery mucilage. Korean formulas use the root extract for that cushioned feel and for the look of reactive skin.
Viola Mandshurica Flower Extract plant extract: Viola Mandshurica is Manchurian violet. Its flower extract is used as a conditioning plant extract.
Aloe Barbadensis Leaf Extract plant extract: Aloe Leaf Extract is mostly water with polysaccharides, amino acids and mild plant acids. It hydrates and leaves a light, cooling film, which is why it is the default after-sun ingredient.
Hydrolyzed Sodium Hyaluronate 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.
Phaseolus Angularis Seed Extract plant extract: Adzuki bean seed extract, the pat of Korean home skincare. It carries saponins and starches and is used as a conditioning, mildly cleansing extract.
Cucurbita Pepo (Pumpkin) Fruit Extract plant extract: Pumpkin fruit extract, carrying carotenoids, sugars and enzymes. It is used as a conditioning extract.
Diospyros Kaki Leaf Extract plant extract: Diospyros Kaki is the persimmon tree. Its leaf extract carries tannins and vitamin C and is used as an antioxidant extract.
Vitis Vinifera (Grape) Fruit Extract plant extract: Grape Fruit Extract carries polyphenols and fruit acids. It is used as an antioxidant plant 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 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.
Polygonum Cuspidatum Root Extract plant extract: Polygonum Cuspidatum is Japanese knotweed, the main commercial source of resveratrol. Its root extract is used as an antioxidant plant extract.
Coffea Arabica (Coffee) Seed Extract plant extract: Coffee Seed Extract carries caffeine and chlorogenic acid. It is used as an antioxidant extract and, in eye and body formulas, for the look of puffiness.
Carthamus Tinctorius (Safflower) Flower Extract plant extract: Safflower Flower Extract is a traditional East Asian dye and skincare plant. It is used as a conditioning antioxidant extract and can tint a formula.
Castanea Crenata (Chestnut) Shell Extract plant extract: Chestnut Shell Extract carries tannins and is used as an antioxidant plant extract, most often in formulas aimed at visible pores.
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.
Zanthoxylum Piperitum Fruit Extract plant extract: Zanthoxylum Piperitum is Korean pepper. Its fruit extract is used as a conditioning plant extract and is often paired with pulsatilla and usnea in Korean formulas.
Hydroxypropyltrimonium Hyaluronate 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.
Corchorus Olitorius Leaf Extract plant extract: Jute mallow leaf extract. The leaf is notably mucilaginous, so the extract holds water and gives a slippery feel.
Tannic Acid plant extract: Tannic Acid is the tannin fraction of plants such as oak and tea. It binds to proteins on the surface, which is what gives a tannin its tightening, astringent feel.
Hordeum Vulgare Extract plant extract: Barley extract, carrying beta-glucan, amino acids and B vitamins. It hydrates and is used as a conditioning grain extract.
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.
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 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.
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.
Potassium Hyaluronate 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.
Nymphaea Alba Flower Extract plant extract: White water lily flower extract, carrying tannins and flavonoids. It is used as a conditioning floral extract.

Inside the formula

Ingredients declared

No fragrance

on the list

Worth knowing

Patch test on the inner arm before applying to the face, as with any new skincare formula.
Introduce a new active gradually into an existing routine rather than adding several new products at once.

Complete the routine

This itemAnua 8 Hyaluronic Acid Catechin Cool Slim Mask 24ml X 10ea$40.00
Cleanse first, so the next step meets bare skinAnua Peach Niacin Spread Cleansing Foam 150ml$30.00
Prep after cleansing, before the treatment stepAnua PDRN 100 Hyaluronic Acid Booster Toner 250ml$37.50

Total for 3 items$107.50

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Anua 8 Hyaluronic Acid Catechin Cool Slim Mask 24ml X 10ea

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Anua, Korean-market original

The Original Korean Formula sheet mask from Anua, formulated with Hydrolyzed Hyaluronic Acid and Methyl Diisopropyl Propionamide, shipped from California or direct from Korea.

Verify your unit when it arrives

Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.

Anua uses a holographic QR seal that only the HiddenTag app can read. Install HiddenTag from your phone’s app store and scan the seal on the box. A camera app alone will not resolve it.

Source: Anua packaging, HiddenTag scheme

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.

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