Xi'an DN Biology offers a top quality Fucus Vesiculosus Extract, produced from brown seaweed harvested from the North Atlantic. Our facility can process up to 3,000 tons per year of botanical materials with modern supercritical extraction technology. This extract is standardized to fucoidan content of 10% to 80%, offering constant bioactivity for your formulations.
Our production benefits from over 14 years of manufacturing experience, 4 large-scale extraction vessels (6 m³ each), and integrated analytical systems (HPLC and UV-Vis spectrophotometry). We are ISO 9001, GMP, HACCP, Kosher and Halal certified. We have up to 100 tons in stock, and can deliver in 7 days on orders in stock. You are provided with third party tested trace-controlled marine extracts, which fulfill international quality standards for nutraceutical and cosmetic purposes.
Brown seaweed extracts have been identified as useful constituents in many industries. "Where we differentiate our product is in the control of the extraction settings and quality standards.
We do supercritical CO2 extraction with aqueous techniques to conserve heat sensitive chemicals such as phlorotannins and fucoidan. This double-process approach allows for the best retention of polysaccharides and antioxidants while retaining the stability of the product.
Our standardized active ingredient profiles enhance your formulations. From 10:1 concentration ratios to specified percentages of fucoidan up to 80%, we calibrate each batch to your exact specifications.
| Parameter | Specification |
|---|---|
| Appearance | Brown Yellow Fine Powder |
| Active Ingredient | Fucoidan 10-80% |
| Extraction Ratio | 10:1 (TLC verified) |
| Mesh Size | 80 mesh |
| Loss on Drying | ≤5% |
| Heavy Metals | ≤10ppm |
| Microbial Count | Total plate count ≤1000cfu/g |
| Testing Method | UV Spectrophotometry |
| Solubility | Water-soluble |
| Storage Conditions | Cool, dry place away from light |
| Shelf Life | 24 months when properly stored |
Every batch undergoes comprehensive testing using HPLC, GC, and TLC methodologies in our independent laboratory. You receive complete COA documentation with shipment.
Dietary & Nutraceutical Supplements
Your customers are looking for natural metabolic support and thyroid health goods. Our Fucus Vesiculosus Extract delivers bioavailable iodine (0.1%-0.2%) and soluble fibre for enhanced satiety formulations.
It is well suited for capsule and tablet forms. The extract is stable in combination with thermogenic chemicals or multivitamin matrices.
Cosmetic Formulations
Marine compounds are valued by cosmetic makers for its anti-aging and skin elasticity uses. Our extract is active against MMPs (matrix metalloproteinases). These are the enzymes that degrade collagen.
You can add it to serums, creams and emulsion systems. It is water soluble which makes formulation easier and also gives measurable increases in skin thickness and elasticity measures.
Professional Spa & Thalassotherapy
Spa product producers need chemicals that work in high salinity settings. Our extract is structurally stable in body wraps and detoxifying applications.
It supports transdermal mineral absorption and lymphatic drainage techniques used in professional wellness settings.

Speed & Production Capacity
Our plant has 3 integrated concentration systems and vacuum and spray drying equipment. Thanks to this infrastructure, production lead times for customized orders are approximately 7-15 days.
Standard specifications: 7 days after payment confirmation. We have a constant stock of 100 tons for large volume purchases.
Quality Control Every Step of the Way
We provide traceability along the entire chain, from sourcing of raw materials to final packaging. Each production lot is subjected to:
You can also get free pre-shipment samples to check the quality before you place full orders.
International Market-Opening Certifications
Our certifications include ISO 9001, ISO 22000, GMP, FSSC 22000, HACCP, Halal and Kosher. These certifications ensure your products comply with regulatory standards in North America, Europe, Middle East and Asia-Pacific areas.
We maintain FDA compliant documentation and help your regulatory submission processes.


OEM/ODM Customization
Your brand deserves unique formulations. We offer complete OEM/ODM services including:
We are open to product development with up-and-coming brands with a minimum order quantity as low as 1kg.
Logistics & Shipping Solutions
We provide a variety of shipping alternatives, including DDP services that take the hassle out of customs processing. Our export staff will organize your marine, air and express freight to your schedule and budget needs.
All items are supplied in 25kg drums with moisture-proof packing. Sample orders (100g-1kg) help your research and development phases.
Xi'an DN Biology integrates decades of plant extraction experience with the most advanced marine bioactive processing. Your firm is supplied with high purity goods backed by full quality systems and timely technical support.
Whether you’re developing next-gen skincare or evidence-based nutraceuticals, we deliver the consistency and customisation your brand needs. Transparent relationships We have policies for factory inspection and our customer support service is available 24/7.
Q: What fucoidan concentration do you recommend for dietary supplements?
A: Most nutraceutical applications perform well with 10-30% fucoidan content. We can customize higher concentrations up to 80% for specialized metabolic support formulations.
Q: Is your product suitable for vegan products?
A: Yes, our extract is 100% plant-based from marine algae sources. It carries Kosher and Halal certifications suitable for various dietary requirements.
Q: Can you provide samples before bulk ordering?
A: Absolutely. We offer free pre-shipment samples and support R&D sample orders from 100g to 1kg so you can validate quality and compatibility with your formulations.
Q: What documentation do you provide with shipments?
A: Each order includes Certificate of Analysis (COA), specification sheets, MSDS, and relevant certification copies. We support your regulatory compliance with complete traceability documentation.
Q: How do you ensure consistent quality across batches?
A: We employ standardized extraction protocols with continuous monitoring using HPLC and UV testing. Our quality system maintains tight specifications on active ingredients, heavy metals, and microbial parameters batch-to-batch.
Ready to integrate premium Fucus Vesiculosus Extract into your product line?
Email: Info@dnbiology.com