Medicinal plants

Perilla frutescens, known in Japan as shiso (紫蘇), is a herb of the mint family used in Japanese cooking and traditional medicine. The leaves contain rosmarinic acid, perillaldehyde, and anthocyanins (in the red variety). Used in cosmetics for soothing and antioxidant positioning.

Kuromoji (Lindera umbellata) is a deciduous shrub in the Lauraceae family, native to Honshu, Shikoku, and Kyushu mountain forests. Traditionally used for tea-ceremony toothpicks and premium wagashi picks. Steam-distilled essential oil offers a fresh, citrusy-woody profile with major components linalool, 1,8-cineole, α/β-pinene. Positions as a uniquely Japanese alternative to hinoki with satoyama sustainability credentials.

Essential oil from Thujopsis dolabrata, designated as Aomori Prefecture's official tree. Contains ~2% hinokitiol with strong antimicrobial properties.

Three species of turmeric cultivated in Okinawa. Autumn turmeric is curcumin-rich, spring and purple varieties are essential oil-rich.

Tropical vine cultivated in Ryukyu Islands for over 500 years. Central ingredient of goya chanpuru.

Japanese mugwort species, distinct from Korean Artemisia asiatica. Long-standing use in kampo and Okinawan cuisine (Fuchiba).

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

Unripe papaya harvested before ripening, rich in papain, chymopapain, and carpain enzymes. Japanese fermentation techniques enable safe supplement use (raw papain is pharmaceutical-designated).

Hardy perennial herb (Apiaceae family) native to Yonaguni Island and other subtropical Ryukyu coastlines. A local Okinawan longevity herb with chlorogenic acid and rutin content comparable to or exceeding kale.

Premium domestic Japanese jujube, primarily cultivated in Fukui Prefecture's Natsume district. Kampo medicine grade Taisō (大棗) variety dominates, pesticide-free and traceable.

Domestic Japanese reishi mushroom, including rare rokkaku reishi (deer-antler form with 50%+ β-glucan content). Japanese cultivation technology pioneered in the 1970s. Sakamoto Bio (Akita), Ōkō (Hokkaido, organic JAS), and Jōyaku Kenkyūsho are primary Japanese producers.

Standardised beta-1,6-glucan extract from maitake mushroom (Grifola frondosa), originally developed at the Kobe Pharmaceutical University in the 1980s. Niigata is the primary cultivation region (~70% of Japan's maitake by volume). The D-fraction is positioned in immune-support and adjuvant supplement contexts internationally; clinical literature exists for both dietary and oncology-adjuvant settings. Functional foods featuring D-fraction must clear country-specific regulatory pathways (FFC in Japan, NDI in US, etc.).

Cultivated lion's mane mushroom — Japanese cultivation pioneered the indoor-grown commercial supply that now dominates the global supplement market. Functional positioning centers on hericenones and erinacines (terpenoid actives) studied for nerve growth factor (NGF) activity. Niigata, Nagano and Hokkaido producers supply both domestic functional food and substantial exports for the cognitive / nootropic supplement segment. Fruiting body and mycelium fractions have different active profiles and command different pricing.

Tochū-cha (eucommia leaf tea) and the bark are core herbal materials in TCM and Kampo. Modern functional positioning emphasises asperuloside and pinoresinol diglucoside, with FFC notifications in Japan referencing blood-pressure and triglyceride support. Domestic Japanese cultivation is concentrated in Nagano and Yamagata; the leaf-based supply for tea and supplements is largely Japan-domestic, while the bark draws on both Japanese and Chinese sourcing. Increasingly used in caffeine-free RTD beverage applications.

Hot-water extract of cultured shiitake mycelium, distinct from the fruiting body in active-ingredient profile. Japanese R&D has standardised lentinan and LEM (Lentinula Edodes Mycelium extract) preparations since the 1980s for immune-support positioning. Major industrial producers in Mie, Gifu, and Niigata supply both supplement and functional-food markets, with substantial export to North American and European immune-positioned supplement brands. Distinct from shiitake-fruiting-body extracts (which are part of the existing 'shiitake-functional' trend coverage).

Cultivated medicinal mushroom (Agaricus blazei), introduced from Brazil but commercialised in Japan since the 1980s, where the cultivar has been refined and standardised under the local 'himematsutake' trade name. Major Japanese producers operate indoor cultivation in Mie, Niigata, and Hokkaido. Beta-glucan-rich extracts are positioned for immune-support supplementation domestically (FFC notifications exist) and exported substantially to North American and Asian supplement markets. Important historical caveat — early-2000s heavy-metal compliance concerns drove tighter quality standards that responsible producers have long since addressed.

A foundational TCM/Kampo medicinal mushroom (Ganoderma lucidum). Japanese cultivation, primarily in Nagano and Niigata, evolved beyond traditional wild collection into standardised indoor cultivation in the 1970s. Modern Japanese reishi suppliers produce both fruiting-body and spore (hoshi) extracts, with the spore variant carrying premium pricing on the back of triterpene concentration. FFC notifications support immune-support positioning domestically. Substantial export to North American supplement and functional-coffee categories.

Extract of kumazasa (dwarf bamboo) leaves, primarily Sasa veitchii and S. kurilensis from Japanese mountain regions. Used historically as a natural preservative for ekiben (railway lunchboxes) and traditional confectionery on the back of antibacterial polysaccharide content. Modern functional positioning leverages alkaline polysaccharide and chlorophyll-derived actives for both cosmetic (deodorising / antibacterial) and food-supplement (digestive / antioxidant) applications. Hokkaido and Nagano are the principal commercial harvest regions.

Native Japanese herb (Angelica keiskei), endemic to the Izu Islands and the Pacific coast of Honshu. Named 'tomorrow's leaf' for its rapid regrowth (a new leaf typically appears the day after harvest). Functional profile centres on chalcone compounds (xanthoangelol, 4-hydroxyderricin) studied for cardiovascular and anti-inflammatory positioning. Hachijojima (Izu Islands), Tokyo's volcanic islands, has GI-protected status for ashitaba; Yakushima and the Boso Peninsula also produce. Used in supplements, functional teas, and increasingly cosmetic active-ingredient lines.

Wild-harvested medicinal fungus (Inonotus obliquus) growing on Hokkaido birch trees. Hokkaido's white birch (shirakaba) forests are the only commercial chaga-harvesting region in Japan. Standardised hot-water and ethanol extracts are the basis of immune-support and antioxidant supplement positioning. Distinct from Russian and Korean chaga in birch-host species (B. pendula vs B. platyphylla in Hokkaido), giving the Hokkaido chaga a slightly different polysaccharide profile. Wild-harvest constraints make supply allocation-driven; sustainable forestry partnerships have emerged to ensure continuity.

Cultivated cordyceps (typically Cordyceps militaris in Japanese commercial cultivation) — distinct from the wild Cordyceps sinensis that historically commanded six-figure pricing in TCM. Japanese cultivation emerged in the 2000s with rice-substrate and silkworm-substrate methodologies. Niigata, Mie, and Tochigi host the principal commercial producers. Standardised cordycepin and adenosine content drives both supplement and increasingly Japanese sake-yeast / koji-cordyceps fusion ingredient positioning. A reference cultivated alternative to wild Tibetan plateau cordyceps for compliance-conscious supplement formulators.

Traditional Japanese grain (Coix lacryma-jobi var. ma-yuen) consumed for centuries as hatomugi-cha and as a Kampo herbal raw material (Yokuinin). Functional positioning centres on coixenolide and coixol active fractions for skin-positioned beauty applications, plus the seed's protein and dietary fibre profile for general nutrition. Tochigi, Tottori, Saitama, and Toyama host the principal cultivation. Cosmetic ingredient grades drive premium skincare lines — especially in 'mochi-hada' (mochi-skin) positioning — while hatomugi-cha remains a major retail beverage category.

Standardised extract of Ginkgo biloba leaves — globally established for cognitive support and circulatory positioning. Japanese cultivation centres on Aichi, Niigata, and Yamagata, with mature processing infrastructure for both flavone-glycoside and terpene-lactone fractions. Domestic Japanese FFC notifications cover memory and cognition support per a strict standardised-extract specification (≥24% flavone glycosides, ≥6% terpene lactones). Distinct quality controls remove ginkgolic acid below international supplement caps. Substantial export to North American and European supplement OEMs as a reference Japanese standardised extract.

Honey-bee secretion fed to queen larvae and bees in early life; harvested commercially as a high-amino-acid, high-protein supplement and cosmetic ingredient. Japan domestic royal-jelly production is dwarfed by Chinese supply, but Japanese cosmetic and supplement OEMs distinguish themselves on Japan-domestic + traceability + 10-HDA (10-hydroxy-2-decenoic acid) standardisation. Yamada Bee Farm (Okayama) and Akita Bee Cooperative are the most-recognised Japanese sources; supply is heavily marketing-driven, with 'fresh royal jelly' (vs lyophilised) commanding multiplier pricing in Japan retail.

Resinous mixture collected by honey bees from tree buds and used to seal hives. Japanese commercial propolis is largely processed from imported raw resin (primarily Brazilian green propolis) under strict Japanese supplement-grade standards, with limited Japan-domestic raw production. Japanese flavonoid + cinnamic-acid standardisation drives premium positioning in immune-support and cosmetic-skin-conditioning applications. Yamada Bee Farm and Honjien have built decade-old Brazilian-supply partnerships with Japanese-style processing standards. Distinct from royal jelly in active-ingredient profile.

Andean tuber introduced to Japan in the 1980s and now cultivated commercially in Ibaraki, Nagano, and Hokkaido. Functional positioning centres on fructooligosaccharide (FOS) content — yacon roots are 60-70% FOS, the highest naturally-occurring concentration of any commonly-cultivated crop. FFC notifications support digestive-health and metabolic positioning. Sold fresh as a salad-and-juicing tuber, dried as yacon-cha (yacon tea), and processed into syrup as a low-glycemic natural sweetener. Distinct from existing 'kuzu-starch' and 'mochigome' carbohydrate-related entries.

Mulberry leaf (Morus alba) — a Kampo herbal raw material with FFC notifications referencing post-meal blood-sugar moderation, anchored in the leaf's deoxynojirimycin (DNJ) content. Japanese cultivation, historically tied to the silk industry, has been re-purposed for kuwa-cha (mulberry-leaf tea) and DNJ-standardised supplement extracts. Nagano (the historic silk region), Gunma, and Kumamoto produce commercial supply; small-volume specialty producers in mountainous Tōhoku also contribute. Distinct from the existing mushroom and bamboo-leaf functional entries.

Cultivated Asian ginseng (Panax ginseng) — historically grown in Japan in Fukushima (Aizu) and Nagano (Shinshu) since 1700s, distinct from Korean and Chinese commercial supply. Modern Japan-domestic cultivation is small-scale but produces premium ginseng commanding multiple-of-Korean pricing in Kampo and supplement markets. Standardised ginsenoside content (Rg1, Rb1, Rb2) drives functional positioning. Aizu and Shinshu cooperatives maintain heritage cultivars; Tochimoto Tenkaido and Uchida Wakanyaku supply pharmaceutical and supplement OEMs.

Cultivated lotus rhizome, used as a vegetable in Japanese cuisine for 1,000+ years. Ibaraki Prefecture produces ~50% of Japan's commercial volume; Tokushima, Saga, and Yamaguchi round out supply. Characteristic crunchy, slightly fibrous texture with hollow channels in the rhizome. Functional positioning targets dietary-fibre and tannin content; cosmetic-grade extract is increasingly used in skin-soothing formulations. Distinct from existing vegetable entries.

Wild-foraged seasonal mountain vegetables: warabi (bracken fern), zenmai (royal fern), fukinotou (butterbur sprout), kogomi (ostrich fern), udo, takenoko (bamboo shoot), tara-no-me (angelica tree shoot), among others. Gunma, Niigata, Akita, and Yamagata host the principal commercial sansai harvest. Distinct from cultivated vegetables; wild-forage carries traceability and place-of-origin storytelling. Increasingly used in fine-dining export and as functional-food ingredients on the back of bitter / phytochemical compounds.

Japanese loquat (Eriobotrya japonica) — Nagasaki and Chiba produce the principal commercial fruit supply; the leaves have substantial Kampo herbal use. Distinguished from imported loquat by superior fresh-fruit eating quality. Cosmetic-grade biwa-leaf extract (existing glossary slug 'eriobotrya-japonica-leaf-extract') anchors anti-inflammatory and skin-calming positioning. Distinct from existing food / herbal entries.