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 Houttuynia Cordata Extract and not three changes at once.

What else is on the list besides Houttuynia Cordata Extract?

Allantoin, Dipotassium Glycyrrhizate and Adenosine. The order they are printed in on this sheet mask's panel is the order on the box, so you can see where Houttuynia Cordata Extract sits relative to them. Further down the same panel: Menthyl Lactate, Saccharomyces Ferment and Soluble Collagen.

Anua

Heartleaf Soothing Mask (3-pack, legacy naming)

Name: Anua Heartleaf Soothing Mask (3-pack, legacy naming)
Brand: Anua
Price: 13.99 USD
Availability: OutOfStock

Anua Heartleaf Soothing Mask is a 3ea sheet mask with Houttuynia Cordata Extract, used after toner, in place of your serum step, in the evening.

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

No reviews yet

$13.99

3ea

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 Houttuynia Cordata Extract in a sheet maskRoutines that want Houttuynia Cordata Extract and Allantoin in one stepFilling the sheet mask step with a Korean-market formula

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Key benefits

Houttuynia Cordata Extract, the plant extract this sheet mask is built around
Allantoin, Dipotassium Glycyrrhizate, Adenosine and Menthyl Lactate on the same list, actives
Saccharomyces Ferment and Soluble Collagen further down the same list
Aloe Barbadensis Leaf Extract and Cryptomeria Japonica Leaf Extract further down the same list
Houttuynia Cordata Extract named thirtieth on the manufacturer list printed on this page

Key actives

13Allantoinactive

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 thirteenth on this sheet mask's list, alongside Houttuynia Cordata Extract.

All products with Allantoin

17Dipotassium Glycyrrhizateactive

Dipotassium Glycyrrhizate is a water-soluble salt derived from licorice root. It is named seventeenth on this sheet mask's list, alongside Houttuynia Cordata Extract.

All products with Dipotassium Glycyrrhizate

21Adenosineactive

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 twenty-first on this sheet mask's list, beside Houttuynia Cordata Extract.

All products with Adenosine

26Menthyl Lactateactive

Menthyl Lactate is a menthol derivative that gives a cooling sensation without menthol's sharpness or scent. It is a sensory ingredient rather than an active. The panel names it twenty-sixth on this sheet mask's list, beside Houttuynia Cordata Extract.

All products with Menthyl Lactate

30Houttuynia Cordata Extractplant extract

Houttuynia Cordata is heartleaf, and it is one of the two or three anchor plants of Korean calming skincare. Its extract carries quercitrin and other flavonoids and is used for the look of redness and blemish-prone skin. The name on the box points at it, and it is named thirtieth on this sheet mask's own ingredient list.

All products with Houttuynia Cordata Extract

Inside the formula

Ingredients declared

No fragrance

on the list

13Allantoin17Dipotassium Glycyrrhizate21Adenosine26Menthyl Lactate30Houttuynia Cordata

13Allantoin
17Dipotassium Glycyrrhizate
21Adenosine
26Menthyl Lactate
30Houttuynia Cordata

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

Anua Heartleaf Soothing Mask (3-pack, legacy naming)

35 of 35 explained

Houttuynia Cordata Flower/Leaf/Stem Water plant extract: Heartleaf water, taken from the whole plant above ground. Korean formulas use it as a base in place of water, where it is far more dilute than the extract of the same plant.
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.
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.
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.
Hydrogenated Polydecene emollient: Hydrogenated Polydecene is a synthetic hydrocarbon emollient used in place of mineral oil. It is stable, has no scent, and gives a cushioned slip without oxidising.
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.
Acrylates Copolymer film former: Acrylates Copolymer is a synthetic polymer that forms a film as the water leaves. It holds a formula in place, controls shine and helps a texture stay put.
Ceratonia Siliqua (Carob) Gum thickener: Carob Gum is a seed polysaccharide from the carob tree. It thickens a formula and gives a soft, cushioned body.
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.
Carrageenan thickener: Carrageenan is a red-seaweed polysaccharide that thickens and forms a moisture-holding film. It gives a formula a slippery, cushioned body.
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.
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.

23 more explained

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.
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.
Cellulose Gum thickener: Cellulose Gum is plant cellulose modified to dissolve in water. It thickens, holds particles in suspension and gives a smooth, slippery body.
Sodium Polyacrylate thickener: Sodium Polyacrylate is a polymer that absorbs many times its weight in water. It thickens a formula and holds water in a gel against the skin.
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.
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.
Gellan Gum thickener: Gellan Gum is a fermentation-derived polysaccharide that sets a clear, brittle gel at very low levels. It is used to suspend particles without thickening the liquid much.
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.
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.
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.
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.
Chromium Oxide Greens (CI 77288) colorant: Chromium Oxide Greens is a dull green mineral pigment. It is inert, sits on the surface, and is used in small amounts to correct the look of redness in a tinted product.
Menthoxypropanediol humectant: Menthoxypropanediol is menthol joined to a glycol. It hydrates and gives a long, low cooling feel rather than the sharp hit of menthol itself.
Menthyl Lactate active: Menthyl Lactate is a menthol derivative that gives a cooling sensation without menthol's sharpness or scent. It is a sensory ingredient rather than an active.
Sodium Phytate chelator: Sodium Phytate is a rice-derived chelator used in place of EDTA. It ties up trace metals so the formula stays stable and its colour and scent hold.
Soluble Collagen protein: Soluble Collagen is collagen kept in its intact triple-helix form and dissolved rather than cut up. It sits on the surface as a water-holding film.
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.
Houttuynia Cordata Extract plant extract: Houttuynia Cordata is heartleaf, and it is one of the two or three anchor plants of Korean calming skincare. Its extract carries quercitrin and other flavonoids and is used for the look of redness and blemish-prone skin.
Cryptomeria Japonica Leaf Extract plant extract: Cryptomeria Japonica is Japanese cedar. Its leaf extract is used as an aromatic antioxidant plant extract.
Nelumbo Nucifera Leaf Extract plant extract: Nelumbo Nucifera is the sacred lotus. Its leaf extract carries flavonoids and is used as a conditioning antioxidant extract.
Saccharomyces Ferment ferment: Saccharomyces Ferment is a brewer's yeast ferment. It supplies amino acids, sugars and B vitamins and is used as a conditioning, hydrating ferment.
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.
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.

How it works

The Heartleaf Soothing Mask is a 3ea sheet mask, used after toner, in place of your serum step, in the evening. The plant extract it is built around is Houttuynia Cordata Extract, named thirtieth on its own ingredient list. The same list carries Allantoin, Dipotassium Glycyrrhizate and Adenosine, so the plant extract is not the only thing on it worth naming. How much of the Houttuynia Cordata Extract stays on the skin, and for how long, is decided by the sheet mask format rather than by the list alone. Anua sells this Houttuynia Cordata Extract sheet mask in Korea, and this is that version.

How to use

Use the Heartleaf Soothing Mask after toner, in place of your serum step, in the evening.
Unfold the sheet, line it up at the eyes first, then smooth it outward so no air is trapped underneath.
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 Houttuynia Cordata Extract on the list.
Introduce this sheet mask on its own for the first week, so anything your skin does is traceable to the Houttuynia Cordata Extract rather than to three changes at once.

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Anua Heartleaf Soothing Mask (3-pack, legacy naming)

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Anua, Korean-market original

The Original Korean Formula sheet mask from Anua, 3ea formulated with Houttuynia Cordata Extract and Allantoin, 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 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
It contains liquiritin, an active compound that helps to disperse and remove existing melanin in the skin.
Jennifer Chwalek, MDDermatologist, Byrdie

1 more professional perspective

Its potential for skincare is promoted because of its anti-inflammatory (think blemishes, rashes, eczema) and hydrating properties.
Michele Koo, MDPlastic surgeon, PureWow