Mulberry Leaf (Kuwa)
桑の葉 (Kuwa-no-ha)
Por qué hacer sourcing en Japón
Japanese historic sericulture infrastructure repurposed for kuwa-cha and supplement extract; FFC notifications support metabolic-health retail positioning.
Spec clave
Deoxynojirimycin (DNJ) 0.1-0.3% in dried leaf; chlorogenic acid 1-3%; rutin 0.5-2%; quercetin glycosides.
Producto final típico
Kuwa-cha (mulberry-leaf tea), blood-sugar-support FFC supplements, Kampo-positioned wellness products.
At a glance
- Proveedores listados
- 3 proveedores
- MOQ típico
- 10–50 kg dried leaf; 1–10 kg standardised extract
- Plazo típico
- 6–10 weeks
- Regiones de origen
- Nagano, Gunma, Kumamoto, Iwate
- Categoría
- Plantas medicinales
- Temporada de cosecha
- May – September (multiple harvests per year)
- Estado regulatorio en Japón
- FFC notifications exist (post-meal blood-sugar moderation); food product status
- Nombre INCI
- Morus Alba Leaf Extract
- Nombre japonés
- 桑の葉
- Romaji
- Kuwa-no-ha
Sobre este ingrediente
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.
Estado regulatorio
| Japón | FFC notifications exist (post-meal blood-sugar moderation); food product status |
|---|---|
| Unión Europea | Novel Food consideration; CosIng comparable for cosmetic extract |
| Estados Unidos | DSHEA NDI for supplements; GRAS by traditional use |
| China | NMPA / TCM context; well-precedented import |
Proveedores japoneses
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
Mayor fabricante de té verde de Japón. Integrada desde el cultivo hasta el envasado. Tecnología propia de tostado de mugicha 'gokumushi ni-dan baisen'. Proveedora multi-ingrediente: extracto de sencha, hojicha en polvo, mugicha e investigación en L-theanine.
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