Mulberry Leaf (Kuwa)
桑の葉 (Kuwa-no-ha)
Pourquoi sourcer au Japon
Japanese historic sericulture infrastructure repurposed for kuwa-cha and supplement extract; FFC notifications support metabolic-health retail positioning.
Spec clé
Deoxynojirimycin (DNJ) 0.1-0.3% in dried leaf; chlorogenic acid 1-3%; rutin 0.5-2%; quercetin glycosides.
Produit fini typique
Kuwa-cha (mulberry-leaf tea), blood-sugar-support FFC supplements, Kampo-positioned wellness products.
At a glance
- Fournisseurs répertoriés
- 3 fournisseurs
- MOQ typique
- 10–50 kg dried leaf; 1–10 kg standardised extract
- Délai typique
- 6–10 weeks
- Régions d'origine
- Nagano, Gunma, Kumamoto, Iwate
- Catégorie
- Plantes médicinales
- Saison de récolte
- May – September (multiple harvests per year)
- Statut réglementaire au Japon
- FFC notifications exist (post-meal blood-sugar moderation); food product status
- Nom INCI
- Morus Alba Leaf Extract
- Nom japonais
- 桑の葉
- Romaji
- Kuwa-no-ha
À propos de cet ingrédient
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.
Statut réglementaire
| Japon | FFC notifications exist (post-meal blood-sugar moderation); food product status |
|---|---|
| Union européenne | Novel Food consideration; CosIng comparable for cosmetic extract |
| États-Unis | DSHEA NDI for supplements; GRAS by traditional use |
| Chine | NMPA / TCM context; well-precedented import |
Fournisseurs japonais
Kobayashi Pharmaceutical Co., Ltd.
小林製薬株式会社
Tokyo-listed OTC pharmaceutical and consumer-health group founded 1886. Best-known internationally for Eyebon eye-care, Netsusama-Sheet, and the Kuwa-no-Ha (mulberry leaf) functional-food line. The Kobayashi B2B ingredient channel supplies a portfolio of Japanese-botanical functional ingredients (mulberry leaf, gymnema, momordica, etc.) to overseas supplement OEMs. Strict quality controls on Kampo-derived materials make Kobayashi a frequent reference supplier for compliance-sensitive overseas buyers.
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Uchida Wakanyaku Ltd.
ウチダ和漢薬株式会社
Tokyo-based Kampo and crude-drug specialist founded 1947. Operates the largest commercial Kampo botanical-ingredient inventory in Japan — over 600 botanical materials sourced and processed for both pharmaceutical Kampo prescription and supplement / functional-food applications. Substantial export business in standardised Japanese-traditional botanical extracts to North American and European supplement OEMs. A reference supplier for buyers seeking traceable, pharmaceutical-grade Japanese herbal materials.
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Ito En Ltd.
株式会社伊藤園
Premier fabricant japonais de thé vert. Intégré de la culture au conditionnement. Technologie propriétaire de torréfaction du mugicha « gokumushi ni-dan baisen ». Fournisseur multi-ingrédients : extrait de sencha, hojicha en poudre, mugicha, recherche sur la L-théanine.
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