At a glance
| Japanese name | ドクダミ |
|---|---|
| Romaji | Dokudami |
| INCI name | Houttuynia Cordata Extract |
| Category | Medicinal plants |
| Regions of origin | Nationwide; commercial cultivation in Tochigi, Shiga |
| Harvest season | May-September (peak June) |
| Typical MOQ | 100 g – 10 kg (extract); 1-100 kg (dried) |
| Japan regulatory status | Cosmetic ingredient; Pharmacopoeia entry as Jūyaku |
| Suppliers listed | 8 suppliers |
About this ingredient
East Asian medicinal herb known in kampo as Jūyaku. Star ingredient in K-Beauty, with growing global demand.
Regulatory status
| Japan | Cosmetic ingredient; Pharmacopoeia entry as Jūyaku |
|---|---|
| EU | CosIng listed |
| United States | Acceptable for cosmetics |
Japanese suppliers
Ichimaru Pharcos Co., Ltd.
一丸ファルコス株式会社
Motosu, GifuEst. 1959English supportExport experienceCOSMOSEcocertFalcolex Dokudami E (cosmetic grade), sourced from domestic Houttuynia cordata
Maruzen Pharmaceutical Co., Ltd.
丸善製薬株式会社
HiroshimaDokudami botanical extract
Yamamoto Kanpoh Pharmaceutical Co., Ltd.
山本漢方製薬株式会社
Nagoya, AichiKampo OEM including dokudami
JPS Pharmaceutical Co., Ltd.
ジェーピーエス製薬株式会社
TochigiIntegrated domestic kampo OEM
Ibuki Yakuso
有限会社 伊吹薬草
ShigaWild medicinal herbs from Mount Ibuki area
Satoyamaya
里山屋
Dokudamīru fresh-leaf extract spray-type raw material
Tokiwa Phytochemical Co., Ltd.
常磐植物化学研究所
Sakura, ChibaEst. 1949English supportExport experienceDokudami extract in the Chiba Sakura phytochemistry lineup.
Kenko Yasocha Center
健康・野草茶センター株式会社
100% purity dokudami whole-plant powder in wild-herb tea lineup.
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Last updated: 2026-04-24