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What is Houttuynia cordata extract?

Plant extract

Houttuynia cordata extract is a water based extract of the herb Korean labels call eoseongcho. It goes into the water phase as a botanical additive, and ingredient lists name it after either the plant or the INCI entry. An extract is a mixture rather than one defined compound, so what is actually in it depends on how the supplier made it.

Was this exact ingredient the one tested?

The extract itself hasn't been tried on human skin; studies used other forms.

What can you expect from it?

Not shown on human skin yet.

What won't it do?

Claims you often see, and what is actually true.

  • Calming or repairing skin isn't shown.

    Houttuynia Cordata Extract calms, soothes or repairs skin

  • It isn't shown to brighten skin.

    Houttuynia brightens skin or fades pigmentation

  • It isn't shown to strengthen the barrier.

    Houttuynia strengthens the skin barrier

Anything to watch out for?

  • Whether it irritates human skin isn't known yet.
  • It hasn't been tried on people or assessed by a safety panel.

Which products feature it?

88 of the 2320 products we've checked feature this as a key ingredient. Products that disclose a concentration or list it near the top of the ingredient list come first.

Showing 1 to 12.

  • It's registered in Korea as a functional cosmetic for brightening.

    Key: Houttuynia Cordata Extract (#2 on the ingredient list · 20.16%), Centella Asiatica Extract 64.33%, Niacinamide

    25 claims, summarized
    You can expect:
    less visible dark spots
    Only partly backed:
    clearer-looking skin · calmer skin · a brighter skin tone (amount unknown)
    Tests passed:
    skin irritation
    See each claim

    claims, checked

    • Whitening functional cosmeticbacked by evidence
    • 1) Centella asiatica extract 64.33%backed by evidence
    • 2) Houttuynia cordata (heartleaf) extract 20.16%backed by evidence
    • Convenient 360° rotating spray!plausible, not tested
    • A mist toner usable for rough skin texture, dead skin cells, pores, sebum, and acne-prone skin, and made as a spray that sprays even when the container is upside down, making it easy to spray on your back!plausible, not tested
    • PETA/Vegan vegan cosmeticplausible, not tested
    • 4) 25 allergy-related ingredients excludedpartly backed
    • Suitable for acne-prone skin, skin sebum reduction effect clinical trial completed!partly backed
    • Acne severity index decreased by 32.13partly backed
    • Skin sebum 17.29% reductionpartly backed
    • Contains 64.33% Centella asiatica extract! The asiaticoside and madecassic acid components of Centella help soothe skin that has become reddened and sensitive due to external irritation.partly backed
    • Contains 20.16% heartleaf extract to gently soothe the skin and keep it moisturized. Heartleaf is rich in a component called 'quercitrin', which helps to gently soothe dry and irritated skin.partly backed
    • A whitening functional cosmetic containing niacinamide helps manage dull skin and marks, helping to keep skin clear.partly backed
    • Skin irritation test completed! Safe ingredients for skin peace of mind.partly backed
    • Clinical trial completed for suitability for acne-prone skinpartly backed
    • AHA, BHA, PHA triple acid ingredients of different molecular sizes are gently and balancedly blended to cleanly refine dead skin cells and impurities in pores, and help soothe problem skin.overstated
    • 2022 November 3rd week ~ 2023 February 2nd week Hwahae Ranking Body Mist/Shower Cologne category #1no supporting source found
    • US Costco entry! 🏆 2026 CertClean Awards win!no supporting source found
    • Natural-origin 96.05%no supporting source found
    • 3) 20 ingredients of concern excludedno supporting source found
    • Gentle mildly acidic mist for sensitive skinno supporting source found
    • Canada Clean Beauty CertCLEANno supporting source found
    • Eco-friendly container for protecting the global environmentno supporting source found
    • Back·chest skin concerns clear!nothing specific to check
    • Maintains pH balance and skin condition in the most comfortable state for skin, caring for healthy skin.nothing specific to check
  • It's made for better hydration and calmer skin.

    Key: Houttuynia Cordata Extract (#11 on the ingredient list · 10%), Kaolin, Bentonite

    25 claims, summarized
    Only partly backed:
    less visible pores (amount unknown) · less shine (amount unknown) · better hydration · a smoother skin texture
    See each claim

    claims, checked

    • No artificial fragrancebacked by evidence
    • Absorbs even sebum moistly Pore Clay Packplausible, not tested
    • Moisture supply simultaneously with dead skin cell removalplausible, not tested
    • Even after moist application or complete drying, the mud easily washes off with lukewarm water, allowing comfortable cleansing.plausible, not tested
    • Comfortably care for skin that has become sensitiveplausible, not tested
    • Offers excellent moisture that prevents skin drynessplausible, not tested
    • A mud texture as soft as fresh cream but as cool as ice cream spreads smoothly on the skin, absorbing sebum and impurities in pores and delivering clean skin.plausible, not tested
    • Developed with a cream texture that does not dry quicklyplausible, not tested
    • Absorbs even sebum moistly-! PoreTox Clay Mask🚿partly backed
    • Low-irritation peeling mask that purifies by absorbing sebum in pores!partly backed
    • Contains PHA ingredient for gentle removal of dead skin cells and impurities!partly backed
    • The combination of kaolin, made by drying soil from clean regions, and bentonite, excellent for sebum absorption, delivers soft mud adherence, and helps to soothe sebum in pores and create clean pores.partly backed
    • Contains heartleaf extract and calendula flower extract, which are excellent for soothing, helping to cool and soothe skin that is flushed from UV or external environment, and moisturizes rough skin.partly backed
    • Cooling that tightens the outside and keeps the inside moist, never dryingpartly backed
    • Purifies pores cleanly to complete clear skinpartly backed
    • Thorough and honest evaluation, 97% of Hwahae survey panel satisfiedoverstated
    • Not only the pore-patented ingredient 'anti-sebum complex' but also PHA, a 3rd-generation peeling ingredient, is contained, helping to thoroughly remove impurities and blackheads in pores and improve to a smooth skin texture.overstated
    • Heartleaf extract 10% cooling maskoverstated
    • 2022 Hwahae First Half Best New Product Wash-Off Pack Category No. 1no supporting source found
    • The sample of this product is judged to be a low-irritation sample in terms of primary irritation.no supporting source found
    • Determined as a low-irritation product with a skin irritation index of 0.0no supporting source found
    • No artificial coloringno supporting source found
    • Full ingredients (EWG Green Grade)no supporting source found
    • CGMP production completedno supporting source found
    • With a mud pack full of moisture, tired pores are soothed in just 5-10 minutes.nothing specific to check
  • It's made for calmer skin.

    Key: Houttuynia Cordata Extract (#4 on the ingredient list · 1%), Houttuynia Cordata Water 94%

    27 claims, summarized
    Only partly backed:
    calmer skin (amount unknown)
    Tests passed:
    hypoallergenic · non-comedogenic
    See each claim

    claims, checked

    • Refreshing water-type formula.backed by evidence
    • Houttuynia cordata extract toner naturally has a clear brownish hue due to its raw material characteristics.backed by evidence
    • Finishes fresh without stickiness.plausible, not tested
    • Skin texture feels refinedplausible, not tested
    • Houttuynia cordata, a single ingredient, soothes gently and softly.plausible, not tested
    • Refreshing and light water-type formula that absorbs quickly without stickiness.plausible, not tested
    • Experience soothing of problem skin with 100% domestic houttuynia cordata ingredient!partly backed
    • Low-irritation skin test completedpartly backed
    • Soothes and calms skinpartly backed
    • Human application test survey results with 100% participant satisfaction.partly backed
    • Sensitive skin was soothedpartly backed
    • #TroubleRelief*partly backed
    • Houttuynia cordata contains quercitrin, which helps quickly soothe sensitized skin.partly backed
    • Skin soothing effect proven by human application test.partly backed
    • One Thing Houttuynia Cordata Extract has been verified for its skin soothing effect against external irritation.partly backed
    • Non-comedogenic test completed (suitable for acne-prone skin).partly backed
    • Houttuynia cordata extract has completed suitability testing for acne-prone skin and provides a comfortable feel even on sensitive skin.partly backed
    • Skin safety test completed.partly backed
    • Composed of a mildly acidic pH similar to the skin surface, it helps maintain skin pH balance and has been rated low-irritation with a skin reactivity of 0.00.partly backed
    • for Problem Skinpartly backed
    • Emergency skin soothing effect with 100% domestic houttuynia cordata ingredient.overstated
    • Veganno supporting source found
    • Oil content improvedno supporting source found
    • Helped improve sebumno supporting source found
    • #SebumControlno supporting source found
    • #OilMoistureBalanceControlno supporting source found
    • Skin in need of soothing from external irritation? The answer is in a toner focused on one ingredient.nothing specific to check
  • It's made for less visible pores and a smoother skin texture.

    Key: Houttuynia Cordata Extract (#1 on the ingredient list), Gluconolactone, Chamomilla Recutita (Matricaria) Flower Extract

    23 claims, summarized
    Only partly backed:
    less visible pores · a smoother skin texture · calmer skin
    See each claim

    claims, checked

    • Skin irritation index 0.0, judged as a low-irritation productbacked by evidence
    • No artificial fragrancebacked by evidence
    • No artificial coloringbacked by evidence
    • Pore pad that wipes away impurities and fills moistureplausible, not tested
    • With a single touch, solves even between pores! Easy, low-irritation pore carepartly backed
    • [3rd-Generation Exfoliating Ingredient] PHApartly backed
    • 7-fold pore improvement effectpartly backed
    • An all-in-one toner pad that thoroughly cleans impurities and dead skin cells inside pores to bring about smooth skin texturepartly backed
    • Dead skin cell improvement 25.94%partly backed
    • Improvement in impurities inside pores 92.83%partly backed
    • A double-sided pad with certified vegan gentle fabric that fills between pore gaps with moisture to cleanse and care for the skinpartly backed
    • Soothing of heat-damaged skin 13.02%partly backed
    • Pore Solver Toner Padoverstated
    • Dead skin cells & impurities, pore stress OUT!overstated
    • Absolute pore soothing, sensitive skin guardianoverstated
    • Ingredients excellent for pore-tightening help alleviate excess sebum, delivering a clean pore zoneno supporting source found
    • [Patent No. 10-0708236] Camellia Flower Extractno supporting source found
    • A vegan fabric made of 100% cellulose fiber that minimizes skin irritation and is usable even on sensitive skinno supporting source found
    • An eco-friendly fabric that naturally biodegrades when buried in compostno supporting source found
    • Thoroughly cleanses pores to complete clear skinno supporting source found
    • Full ingredients (EWG Green Grade)no supporting source found
    • CGMP production completedno supporting source found
    • Flawless, clear skinnothing specific to check
  • It's made for clearer-looking skin and better barrier support.

    Key: Houttuynia Cordata Extract (#2 on the ingredient list), Niacinamide, Adenosine

    4 claims, summarized
    Only partly backed:
    clearer-looking skin · better barrier support
    See each claim

    claims, checked

    • A soothing toner for sensitive, uneven skin made touchy by the change of seasonspartly backed
    • Not only does it contain 100,000ppm of Houttuynia cordata extract, it also adds a Houttuynia cordata PDRN component, so outstanding effects on skin barrier improvement and blemish relief can be expectedpartly backed
    • Its distinguishing feature is that 'quercetin', the core component of Houttuynia cordata, is strengthened 9 times by Blanc Nature's own high frequency extraction methodno supporting source found
    • Blanc Nature, a brand specializing in blemish-prone and sensitive skin, has newly presented the '9x Highly Concentrated Houttuynia Cordata Toner' after two years of researchnothing specific to check
  • Key: Houttuynia Cordata Extract (#3 on the ingredient list), Melaleuca Alternifolia (Tea Tree) Leaf Extract, Centella Asiatica Extract

    1 claim, summarized
    Don't count on:
    calmer skin
    See each claim

    claims, checked

    • 3-second soothing for sensitive skinoverstated
  • It's made for calmer skin and better hydration.

    Key: Houttuynia Cordata Extract (#4 on the ingredient list), Glycerin, Centella Asiatica Extract

    34 claims, summarized
    Only partly backed:
    calmer skin (amount unknown) · better hydration (amount unknown) · better barrier support (amount unknown)
    See each claim

    claims, checked

    • Soft, dense, moist bubbleplausible, not tested
    • For those who need a gentle cleanser that can be used on skin sensitized by irritationplausible, not tested
    • For those who feel severe dryness and tightness after just washing their faceplausible, not tested
    • THE MILDLY ACIDIC DEEP CLEANSING FOAMING CLEANSER CONTAINING HEARTLEAF INGREDIENT COMFORTS AND SOOTHES SENSITIVE SKINpartly backed
    • A real calming cleansing foam that soothes skin irritated by fine dustpartly backed
    • Check. 1 Fine dust cleansing power test completedpartly backed
    • Check. 2 Sunscreen cleansing power test completedpartly backed
    • Check. 3 Skin safety test completedpartly backed
    • Clears away not only sunscreen but also invisible fine dustpartly backed
    • The dense, rich mildly acidic bubbles cling closely to the skin, delivering a moist and refreshed sensation after cleansingpartly backed
    • Cleansing power of Houttuynia Cordata Calming Clean Foam, verified by datapartly backed
    • Houttuynia Cordata Calming Clean Foam cleanses fine dust and sunscreen from the skin, soothes skin sensitized by external irritation, and cares for it to be moist and comfortablepartly backed
    • 01 | Gentle but powerful cleansing power! Fine dust cleansing power verification completedpartly backed
    • 99% fine dust cleansing power with Houttuynia Cordata Calming Clean Foampartly backed
    • 02 | Sunscreen also cleaned thoroughly in every corner!partly backed
    • Cleansing power 97.4% DETERGENCY TESTpartly backed
    • Skin safety test result: judged as low-irritationpartly backed
    • Houttuynia cordata extract soothes sensitized skin and cares for it to be clean and clearpartly backed
    • Buddleja extract and thyme extract protect skin from the external environment and supply abundant moisturepartly backed
    • Centella asiatica extract soothes sensitive and damaged skin barriers and provides healthy skin carepartly backed
    • 100% VEGAN FORMULApartly backed
    • Washes away not only sunscreen and makeup residue but also invisible fine dust from every corner of the skin in one go, a comfortable end to the dayoverstated
    • 03 | Don't worry about irritation! Skin safety test completedoverstated
    • SKIN SAFETY TEST COMPLETED. HYPOALLERGENIC FORMULAoverstated
    • The dense, rich, hydrating bubbles that cannot be found in mildly acidic cleansing foams cleanse fine dust and waste remaining on the skin, delivering a fresh and moist feelingoverstated
    • No.1* HyuKam Cleansing Foamno supporting source found
    • *1st place in the 22 Glowpick Award Cleansing Foam categoryno supporting source found
    • EWG Green Gradeno supporting source found
    • Mild acidity for skin balanceno supporting source found
    • A mildly acidic cleansing foam comfortable on the skin, maintaining a moist skin balanceno supporting source found
    • The myth of the reverse run to No.1nothing specific to check
    • # FineDustCleansing # MoistureSoothingFoam # MildAcidicBubblenothing specific to check
    • Cleansing powerfully! Comfortably for the skin!nothing specific to check
    • For those whose skin has become sensitive due to fine dustnothing specific to check
  • Goodal

    어성초 히알루론 수딩 클리어패드 (Korean)This brand publishes no English name for this product. The name above is as printed in Korean.

    Key: Houttuynia Cordata Extract (#5 on the ingredient list), Hyaluronic Acid, Panthenol

    2 claims checked

    claims, checked

    • 'Houttuynia Hyaluronic Soothing Pad' allows you to experience cooling care that refreshingly replenishes moisture with immediate cooling of -3.7℃, soothes heated skin with a smooth side, and is a 2 in 1 pad that can even exfoliate with a thick patterned fabric.partly backed
    • Since the Goodal Houttuynia line has received continuous attention for its outstanding soothing effect and comfortable usability, it has been renewed and launched as a cooling soothing line with the addition of hyaluronic soothing active ingredients and ice Houttuynia extract.nothing specific to check
  • It's made for better hydration and calmer skin.

    Key: Houttuynia Cordata Extract (#5 on the ingredient list), Hyaluronic Acid, Allantoin

    26 claims, summarized
    Only partly backed:
    better hydration · calmer skin · clearer-looking skin · better barrier support
    Don't count on:
    less visible pores
    See each claim

    claims, checked

    • Contains Houttuynia cordata extractbacked by evidence
    • Houttuynia cordata packed moisture soothingplausible, not tested
    • Moist and soothing serumplausible, not tested
    • When you need quick soothing and moisture supplyplausible, not tested
    • When skin suddenly becomes sensitive due to masks or makeupplausible, not tested
    • When you want soft, non-sticky moistureplausible, not tested
    • Safe even for acne-prone, sensitive skinpartly backed
    • Filled with Houttuynia cordata extract rich in soothing effects, it helps with moisture, soothing, and barrier care at oncepartly backed
    • Formulated with 3 sub-ingredients for moisture, soothing, and barrier care at oncepartly backed
    • Cares even for the root of skin troublesoverstated
    • Immediate moisture improvement 580.3%no supporting source found
    • Immediate soothing effect 627.3%no supporting source found
    • Sebum improvement 123.3%no supporting source found
    • When you need a gentle, low-irritation serum for the skinno supporting source found
    • Uses Houttuynia cordata extract made from fresh ingredients purchased from clean regionsno supporting source found
    • Immediate soothing and moisture-charging effect felt with a single useno supporting source found
    • Immediate soothing improvement! 627.3% improvementno supporting source found
    • Immediate moisture-charging improvement! 580.3% improvementno supporting source found
    • Test completed for safe use on sensitive skin and suitability for acne-prone (troubled) skinno supporting source found
    • Acne severity improved 54.3%no supporting source found
    • Oil (sebum) amount improved 53.2%no supporting source found
    • Whiteheads improved 36.9%no supporting source found
    • Blackheads improved 30.9%no supporting source found
    • When you want to nourish the skinnothing specific to check
    • The secret to becoming a life serum! Immediate and definite effect!nothing specific to check
    • Carrying nature, resembling nature - Dajayeon (Dajayeon)nothing specific to check

Are the claims about it backed up?

We checked each claim that features this ingredient. Open the list below to see the result for each one.

See the results by claim
ResultClaims
backed by evidence11 of 95
plausible, not tested9 of 95
partly backed40 of 95
overstated14 of 95
no supporting source found11 of 95
contradicted by sources1 of 95
nothing specific to check9 of 95

These are counts of claims, not products. One product can name the same ingredient in several claims, and we checked each one on its own.

Sources

We summarized the published studies and public records listed below, each with its DOI or PubMed number. Findings about treating medical conditions are outside what a cosmetics page covers, so we left them out.

Was this exact ingredient the one tested?

Across the eight sources retrieved, not one tests plain Houttuynia Cordata Extract applied topically to human skin.

The tested materials differ from the INCI ingredient in ways that matter:

What won't it do?

  • Calming or repairing skin isn't shown.

    No study here put the extract on human skin, so a reading taken from cells in a dish cannot stand in for a skin result.

    Every finding behind the claim comes from cultured cells, and the one study run for cosmetic use wrote that it stayed in the dish with no skin data.

    No source here applies the extract topically to human skin.

    The anti-inflammatory and barrier-protein findings are cell culture results, and the one source that examined formulation for cosmetic use states that it was confined to in vitro assays with no in vivo validation and no permeation data.

    Sources: 1, 2, 3, 4

  • It isn't shown to brighten skin.

    The color related readings came from the oil pressed from the leaves in cell lines that are not skin, and no study here measured skin tone on a person.

    Cell line work on a different material, with no measurement on human skin anywhere in this set.

    No source here reports a pigmentation outcome for the extract, and none reports any pigmentation measurement on human skin.

  • It isn't shown to strengthen the barrier.

    The barrier related numbers are gene and protein readings from a single layer of cells. No study here measured the water leaving skin, or the water held in skin, on a person.

    Cultured skin cells only. No houttuynia material has had a barrier measurement taken on human skin in this set.

    Filaggrin, loricrin and AQP3 changes are gene and protein measurements in keratinocyte monolayers.

    Sources: 3, 4

Lab and related-material results

  • In lab cells the extract eases oxidative stress.

    In human skin cells grown in a dish, the extract lowered damaging oxygen molecules and turned up a gene the skin uses to build its outermost layer.

    Not a test on skin. Human skin cells cultured in a dish, treated with the extract itself.

    The extract activated AHR and nuclear factor E2-related factor 2, induced the antioxidative enzyme gene, inhibited ROS generation, and upregulated filaggrin gene expression in human keratinocytes.

    Sources: 4

  • In lab cells, other houttuynia materials calm inflammation.

    Three different houttuynia materials each lowered the inflammation signals cells release, so the direction is consistent. None of the three was the plain extract, and all of it was read in cells.

    Three separate cell studies, each on a different houttuynia material: a fermented broth, a concentrated fraction, and the oil pressed from the leaves.

    Reduction of inflammatory cytokine secretion is reproduced in three separate cell systems with three different Houttuynia preparations: fermented and unfermented broth in HaCaT cells, the enriched fraction in dermal fibroblasts, and the essential oil in macrophages.

    Sources: 1, 2, 3

Citations

  1. 1
    Sangthong S, Chaiwut P, Pintathong P, Suwannawong B, Srisayam M, Theansungnoen T, Chandarajoti K, Arabnozari H, Sarker SD, Nahar L. In vitro bioactivities and formulation stability of Houttuynia cordata essential oil for cosmetic applications. Sci Rep. 2025;15(1):37263.DOI 10.1038/s41598-025-21278-xPMID 41136636
  2. 2
    Mapoung S, Umsumarng S, Semmarath W, Arjsri P, Srisawad K, Thippraphan P, Yodkeeree S, Dejkriengkraikul P. Photoprotective Effects of a Hyperoside-Enriched Fraction Prepared from Houttuynia cordata Thunb. on Ultraviolet B-Induced Skin Aging in Human Fibroblasts through the MAPK Signaling Pathway. Plants (Basel). 2021;10(12):2628.DOI 10.3390/plants10122628PMID 34961096
  3. 3
    Song Z, Fang J, Wang D, Tian Y, Xu Y, Wang Z, Geng J, Wang C, Li M. Inhibition of LPS-Induced Skin Inflammatory Response and Barrier Damage via MAPK/NF-kappaB Signaling Pathway by Houttuynia cordata Thunb Fermentation Broth. Foods. 2024;13(10):1470.DOI 10.3390/foods13101470PMID 38790770
  4. 4
    Doi K, Mitoma C, Nakahara T, Uchi H, Hashimoto-Hachiya A, Takahara M, Tsuji G, Nakahara M, Furue M. Antioxidant Houttuynia cordata extract upregulates filaggrin expression in an aryl hydrocarbon-dependent manner. Fukuoka Igaku Zasshi. 2014;105(11):205-213.PMID 25816564

What each point on this page rests on, with full citations.