Tokiwa Phytochemical Co., Ltd.

Yuzu (Citrus junos) is a Japanese citrus with a distinctive aromatic profile. Kōchi prefecture is Japan's largest producer. The peel yields essential oil dominated by d-limonene, while aqueous extracts carry flavonoids and citric acid. Used in fragrance, bath products, and skin-conditioning toners.

Sencha is the most widely consumed Japanese green tea. The extract form is spray-dried or concentrated for use in beverages, supplements, and functional foods. Catechins, L-theanine, caffeine, and chlorophyll are key actives. Several FFC products cite sencha polyphenol or specific catechin content for metabolism claims.

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.

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

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

Fermented juice of astringent (shibu-gaki) persimmons, used in Japan for over 800 years as a natural preservative for paper (washi), wood, and cloth, and increasingly as a deodorising/antibacterial active in skincare, body care, and antimicrobial textiles. Kyoto, Wakayama, and Gifu host the historic kakishibu production tradition. The high condensed-tannin content (proanthocyanidin polymers) drives both colour (warm tan-brown) and the deodorising effect on volatile sulphur compounds — the basis of the modern body-care positioning.

Cosmetic and supplement-grade placenta extract sourced from Hokkaido-raised horses (uma-placenta). Hokkaido's regulated equine industry — anchored by Hidaka and the broader Hokkaido pasturage — supplies upcycled placenta material processed under medical-grade hygiene standards. Japanese cosmetic and supplement OEMs distinguish between equine, porcine and marine-derived placenta; equine grade commands premium pricing in skincare and beauty-supplement categories on the back of growth-factor and cytokine content. Marketed for skin elasticity and brightening positioning.

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.

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.

Yellow and purple cultivated chrysanthemum varieties consumed in Japan as a salad / sashimi garnish, dried herbal tea, and increasingly as a cosmetic active. Aomori (Hachinohe) is the leading commercial production region; the 'Mottenohoka' purple cultivar from Yamagata commands GI-positioned regional pricing. Functional positioning targets antioxidant flavonoid content (luteolin, apigenin); cosmetic extracts feature in anti-ageing and brightening positioning. Distinct from existing 'yomogi' (mugwort) and 'dokudami' (heartleaf) entries.

Cosmetic and food-grade extract of Yoshino cherry (Prunus × yedoensis) blossoms, harvested during the brief late-March / early-April bloom. The pickled flower (sakura-zuke) has 600+ years of Japanese culinary use; modern cosmetic-grade extract emerged in the 1990s, positioned for skin-brightening and antioxidant applications based on caffeoylquinic acid and caffeoylsucrose content. Production is highly seasonal and place-specific — Yoshino (Nara), Hirosaki (Aomori), and Izumiya producers (Saitama) are the historical extract suppliers. Often paired with cherry-blossom fragrance / floral-positioning packaging in spring-edition retail.

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.