HEARTLEAF 100 Serum 40ml
DEWYTREE's HEARTLEAF 100 Serum 40ml is a serum (40ml), built around Houttuynia Cordata Extract for a Korean-market formula, positioned as the serum step, after toner or essence and before moisturizer.
No reviews yet40 ml
$81.25 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- Congested skinUneven textureDehydrated skinSensitive skin
- Helps with
- Shoppers looking for Houttuynia Cordata Extract in a serumRoutines that want Houttuynia Cordata Extract and Allantoin in one stepFilling the serum step with a Korean-market formulaAnyone who wants the Houttuynia Cordata Extract serum 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 HEARTLEAF 100 Serum is a 40ml serum, used after toner and before moisturizer, morning and evening. The plant extract it is built around is Houttuynia Cordata Extract, named second on its own ingredient list. The same list carries Allantoin, Madecassoside and Asiaticoside, 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 serum format rather than by the list alone. This is the Original Korean Formula, the serum DEWYTREE sells in Korea, Houttuynia Cordata Extract and all.
Key benefits
- Houttuynia Cordata Extract, the plant extract this serum is built around
- Allantoin, Madecassoside, Asiaticoside and Madecassic Acid on the same list, actives
- Asiatic Acid and Tocopherol further down the same list
- Centella Asiatica Extract and Zea Mays (Corn) Leaf Extract further down the same list
- Houttuynia Cordata Extract named second on the manufacturer list printed on this page
- The Korean-market release of this serum, confirmed against its Korean barcode
Inside the formula
Inside the formula
Where does this serum go in my routine?
After toner and before moisturizer, morning and evening. Anything thinner than a serum goes on before it, and anything richer goes on after. 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.
Is this the Korean-market serum or a US version?
The Korean-market one, Houttuynia Cordata Extract and all. We match this serum to its Korean barcode before it reaches the shelf, which is the check that tells you which market release you are holding.
What else is on the list besides Houttuynia Cordata Extract?
Allantoin, Madecassoside and Asiaticoside. The order they are printed in on this serum'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: Madecassic Acid, Asiatic Acid and Tocopherol.
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (24): Water, Houttuynia Cordata Extract (186,105Ppm), Methylpropanediol, Dipropylene Glycol, 1,2-Hexanediol, Glycerin, Glycereth-26, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, PPG-13-Decyltetradeceth-24, Tromethamine, Citric Acid, Disodium EDTA, Rosmarinus Officinalis (Rosemary) Leaf Oil, Butylene Glycol, Allantoin, Betula Platyphylla Japonica Juice, Ethylhexylglycerin, Madecassoside, Asiaticoside, Tocopherol, Centella Asiatica Extract, Zea Mays (Corn) Leaf Extract, Madecassic Acid, Asiatic Acid
Ingredient list read from inkeedecoder.com on 10 September 2026.
24 of 24 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.
- Houttuynia Cordata Extract (186,105Ppm) 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.
- 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.
- 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.
- 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.
- Glycereth-26 humectant
- Glycereth-26 is a modified glycerin that hydrates with far less stickiness than glycerin itself. It is a common way to load water into a formula that has to stay light.
- 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.
- PPG-13-Decyltetradeceth-24 emulsifier
- PPG-13-Decyltetradeceth-24 is a solubiliser used to hold oils and fragrance in a clear water-based formula.
- 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.
- Citric Acid pH adjuster
- Citric Acid is used in tiny amounts to bring a formula to the pH its actives need, not as an exfoliant at that level. It is an AHA, so at much higher concentrations it can also exfoliate.
- 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.
12 more explained
- 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.
- 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.
- 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.
- Betula Platyphylla Japonica Juice plant extract
- Betula Platyphylla Japonica Juice is Asian white birch sap, tapped in spring. It is over 98 percent water with trace minerals and sugars, and Korean formulas use it in place of plain water as a hydrating base.
- 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.
- Madecassoside active
- Madecassoside is the centella triterpene most associated with the look of redness, and the one brands lead with in cica products. It is water soluble and stable, so it appears in essences as readily as in creams.
- 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.
- Tocopherol antioxidant
- Tocopherol is vitamin E. It is an oil-soluble antioxidant that protects the oils in a formula from going rancid and works on skin as an emollient, and it is regularly paired with vitamin C because each keeps the other going for longer.
- 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.
- Zea Mays (Corn) Leaf Extract plant extract
- Corn leaf extract. It carries flavonoids and sugars and is used as a conditioning botanical, distinct from the starch and oil taken from the kernel.
- Madecassic Acid 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.
- 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.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809517476542
- Made in
- Republic of Korea
- Volume
- 40 ml
- Category
- Serum & Ampoule
- Actives
- Allantoin, Birch Sap, Centella Asiatica, Heartleaf (Houttuynia Cordata), Madecassoside
- 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 this serum AM and/or PM, as the serum step, after toner or essence and before moisturizer. Pat or smooth it on rather than rubbing, and give it a moment to settle before layering the next step.
Worth knowing
- Patch test this serum on a small area and wait a day before using it more widely, especially with Houttuynia Cordata Extract on the list.
- Introduce this serum 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.
Complete the routine
- This itemDEWYTREE HEARTLEAF 100 Serum 40ml$32.50
- The last step of the morning, over everything elseDEWYTREE Urban Shade Anti-Pollution Tone Up Sun 40ml$25.00
- Seal the routine in as the last stepDEWYTREE ULTRA S4 Snail Cream 80ml$22.50
Total for 3 items$80.00
Reviews
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DEWYTREE HEARTLEAF 100 Serum 40ml
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
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DEWYTREE, Korean-market original
Built around Houttuynia Cordata Extract, named on this product's own ingredient list, sourced as the authentic Korean-market formula.
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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