Japan Ingredient Sourcing
Raw material / 原材料Medicinal plants

Dokudami (Houttuynia Cordata)

ドクダミ (Dokudami)

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Why source from Japan

Sourced from Nationwide; commercial cultivation in Tochigi, Shiga with year-round Japanese supply, consistent quality, and traceability to the prefecture of origin.

Key spec

Houttuynia cordata source; INCI Houttuynia Cordata Extract; MOQ from 100 g – 10 kg (extract); 1-100 kg (dried).

Typical end-product

Soothing facial essence / serum — K-Beauty inspired soothing skincare with Houttuynia cordata as a hero plant active.

At a glance

Suppliers listed
8 suppliers
Typical MOQ
100 g – 10 kg (extract); 1-100 kg (dried)
Regions of origin
Nationwide; commercial cultivation in Tochigi, Shiga
Category
Medicinal plants
Harvest season
May-September (peak June)
Japan regulatory status
Cosmetic ingredient; Pharmacopoeia entry as Jūyaku
INCI name
Houttuynia Cordata Extract
Japanese name
ドクダミ
Romaji
Dokudami

About this ingredient

East Asian medicinal herb known in kampo as Jūyaku. Star ingredient in K-Beauty, with growing global demand.

Regulatory status

JapanCosmetic ingredient; Pharmacopoeia entry as Jūyaku
EUCosIng listed
United StatesAcceptable for cosmetics

FAQ for OEM buyers

Q. Where is dokudami commercially produced in Japan?

The plant grows nationwide as a wild herb. Commercial cultivation for crude-drug and extract use is concentrated in Tochigi and Shiga Prefectures, where established kampo and herbal-tea supply chains exist.

Sources

  • Source data — sourcing_context.regions

Industry-knowledge claim — not yet pinned to a single primary source

Q. When is dokudami harvested?

Harvest runs from May through September, with peak harvest in June when the aerial parts and flower buds are most abundant. Material destined for the Juyaku crude drug is typically harvested during flowering.

Sources

  • Source data — sourcing_context.harvestSeason

Industry-knowledge claim — not yet pinned to a single primary source

Q. What MOQs are typical for dokudami extract and dried herb?

Extract preparations are typically supplied in 100 g to 10 kg batches; dried herb (for tea or kampo blends) is generally supplied in 1 kg to 100 kg lots. Custom MOQs are commonly available through OEM partnership.

Sources

  • Source data — sourcing_context.typicalMoq

Industry-knowledge claim — not yet pinned to a single primary source

Q. Is Japanese dokudami suitable for export to Korean K-Beauty buyers?

Houttuynia cordata is a major K-Beauty ingredient and is permitted under the Korean MFDS / KFDA cosmetic ingredient framework when supplied with appropriate INCI documentation. Japanese suppliers targeting Korean brands should provide standard COA, allergen, and INCI documentation aligned with MFDS expectations.

Sources

Use cases

  • Soothing facial essence / serum

    Positioning
    K-Beauty inspired soothing skincare with Houttuynia cordata as a hero plant active
    Formulation notes
    Aqueous or hydro-alcoholic extract is typically incorporated at 0.1-5% in toners, essences, and ampoules; pair with panthenol or centella for soothing complexes.

    Sources

    • Source data — glossary_context.typicalUses

    Industry-knowledge claim — not yet pinned to a single primary source

  • Scalp-care lotion / shampoo

    Positioning
    Plant-derived scalp-soothing positioning leveraging the herb's traditional anti-inflammatory association

    Sources

    • Source data — glossary_context.typicalUses

    Industry-knowledge claim — not yet pinned to a single primary source

  • Detox-positioned herbal tea

    Positioning
    Single-herb or blended tea referencing the kampo Juyaku tradition

    Sources

  • Sheet mask essence

    Positioning
    K-Beauty crossover skincare positioned around redness-soothing and barrier comfort

    Sources

    • Source data — glossary_context.typicalUses

    Industry-knowledge claim — not yet pinned to a single primary source

Japanese suppliers

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Last updated: 2026-04-24

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