Description
10% FUCOXANTHIN · FUCUS VESICULOSUS · B2B INGREDIENT
Fucoxanthin Bladderwrack Extract Powder
LongBio supplies bladderwrack extract powder standardized to 10% fucoxanthin for B2B formulation and supplier qualification. Buyers can review the UV assay basis, representative batch data and request the current offered-lot COA, sample or quotation.

COA-Backed Specification
| Botanical identity | Fucus vesiculosus L. |
|---|---|
| Plant part | Whole herb |
| Form and colour | Fine yellowish-brown powder |
| Assay | Fucoxanthin >=10.0% by UV; result 10.41% |
| Particle size | 98% through 80 mesh |
| Loss on drying | <=5.0%; result 3.91% |
| Ash | <=5.0%; result 4.40% |
| Representative batch | LXYZ230518 |
| Manufacture date | 18 May 2023 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.

Buyer Decision Guide
Compare this standardised grade by Fucoxanthin >=10.0% by UV; result 10.41%, the stated method and the offered-lot result; raw material and ratio extracts are different purchasing specifications.
- Evaluation sample typically 10-20 g
- Regular MOQ typically 1 kg
- Typical lead time 7-15 working days

How This Grade Differs
Bladderwrack Whole-Herb Extract Powder 10% Fucoxanthin is qualified using botanical identity: Fucus vesiculosus L.; plant part: Whole herb; offered grade: Fucoxanthin >=10.0% by UV; result 10.41%. Its purchasing definition is anchored to Fucoxanthin >=10.0% by UV; result 10.41%; alternatives must be compared on marker target and analytical basis.
Compare these related grades before approval:
- Bladderwrack Whole-Herb Extract Powder 0.1% Iodine
- Bladderwrack Whole-Herb Extract Powder 10:1
- Bladderwrack Whole-Herb Extract Powder 4:1
For a substitution review, compare botanical identity, plant part, assay target, analytical method, physical form and the current offered-batch COA.
Quality and Documentation
Representative batch LXYZ230518 supports the specification table above. Current lot evidence and buyer-defined verification govern acceptance of the commercial shipment.
Why Standardized Fucoxanthin Beats “Brown Seaweed Extract” on the Spec Sheet
Application / Formulation Example: Fucoxanthin is a carotenoid unique to brown algae, widely studied for metabolic-support applications. A popular metabolic wellness formula stacks: 5–10 mg fucoxanthin (standardized from bladderwrack), 100 mg green tea EGCG, and 250 mg curcuminoids — a combination that targets complementary pathways and is common in weight-management and metabolic-health softgels. Because fucoxanthin is heat- and light-sensitive, specify a protected form (e.g., in a lipophilic carrier or with antioxidant tocopherols) and keep the finished product in opaque blister or amber packaging.
Spec Comparison:
| Parameter | Our Fucoxanthin Extract | Generic Brown Seaweed Extract |
|---|---|---|
| Active marker | Fucoxanthin quantified (per COA) | Not standardized |
| Source | Fucus vesiculosus / bladderwrack | Mixed brown algae |
| Solvent profile | Controlled, batch-documented | Varies |
| Traceability | Batch-level COA + full traceability | Often lot-level only |
Market Context: The fucoxanthin ingredient segment is expanding within the metabolic-health category, with demand led by weight-management and sports-nutrition formulations in Asia-Pacific and North America. Formulators increasingly request fucoxanthin with a documented assay rather than a generic “seaweed extract” claim. (Qualitative trend.)
Bladderwrack Buyer Resources
Frequently Asked Questions
What specification defines Bladderwrack Whole-Herb Extract Powder 10% Fucoxanthin?
For Bladderwrack Whole-Herb Extract Powder 10% Fucoxanthin: Fucoxanthin >=10.0% by UV; result 10.41%.
How should the botanical identity be checked?
For Bladderwrack Whole-Herb Extract Powder 10% Fucoxanthin: Qualification starts with Fucus vesiculosus L., Whole herb. The product name alone is not sufficient when species, plant part or grade differs.
How should sample and shipment records be matched?
For Bladderwrack Whole-Herb Extract Powder 10% Fucoxanthin: The page cites representative batch LXYZ230518. The sample, quotation and shipment COA should be traceable to the grade actually offered.
How can the offered grade be checked before purchase?
For Bladderwrack Whole-Herb Extract Powder 10% Fucoxanthin: Yes. The commercial review should use the COA for the lot being offered, together with the matching quotation and specification.
What evidence supports technical acceptance?
For Bladderwrack Whole-Herb Extract Powder 10% Fucoxanthin: Review identity and Fucoxanthin >=10.0% by UV; result 10.41% together with the listed physical tests and applicable contaminant and microbiological limits.
What can change the quoted lead time?
For Bladderwrack Whole-Herb Extract Powder 10% Fucoxanthin: Commercial timing is finalised after quantity, packaging, document set and any additional testing have been agreed.
Can buyers request an alternative pack configuration?
For Bladderwrack Whole-Herb Extract Powder 10% Fucoxanthin: Application-specific requests require technical review. Approved changes should be documented rather than treated as an informal substitution.





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