At a glance
| Japanese name | フコイダン |
|---|---|
| Romaji | Fukoidan |
| INCI name | Fucoidan (from various brown seaweeds) |
| Category | Marine functional ingredients |
| Regions of origin | Okinawa (mozuku), Hokkaidō (kombu), Nationwide |
| Harvest season | Seaweed harvest varies by species (April–June for mozuku) |
| Typical MOQ | 1–10 kg |
| Typical lead time | 6–12 weeks |
| Japan regulatory status | JSCI listed; separately recognized as a functional food ingredient |
| Suppliers listed | 2 suppliers |
About this ingredient
Fucoidan is a sulfated polysaccharide extracted from brown seaweeds, most commonly mozuku (Cladosiphon okamuranus) from Okinawa and kombu (Saccharina japonica) from Hokkaidō. Studied for moisturizing, immune-modulating, and antioxidant positioning. Sold as both a cosmetic ingredient and a functional food supplement.
Regulatory status
| Japan | JSCI listed; separately recognized as a functional food ingredient |
|---|---|
| EU | CosIng listed; functional food use requires separate evaluation |
| United States | INCI recognized; DSHEA notification pathway for supplement use |
| China | IECIC listed for cosmetics; functional food verify |
Japanese suppliers
Oryza Oil & Fat Chemical Co., Ltd.
オリザ油化株式会社
Ichinomiya, AichiEst. 1954English supportExport experienceFucoidan extract offered in their marine-origin functional ingredient range.
Kanehide Bio Co., Ltd.
金秀バイオ株式会社
Tomigusuku, OkinawaEnglish supportExport experienceISO22000Japan Health Food GMPHigh-purity fucoidan extract from Okinawa-grown brown seaweed.
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Last updated: 2026-04-24