Description
Product Overview
Black Walnut Husk Extract (Juglans nigra) is a traditional botanical extract standardized to 5% tannins (by UV), derived from the green hulls of Juglans nigra (Juglandaceae). Black walnut hull has a long history of use in digestive and intestinal wellness formulas. Our bulk black walnut extract is GMP-produced, ideal for digestive support and traditional herbal supplements.
Botanical Profile
- Botanical Name: Juglans nigra
- Part Used: Green hull (husk)
- Standardization: Tannins 5% (UV)
- Source: GMP-certified extraction facility, Xi’an, China
Product Specifications & Quality Standard
| Parameter | Specification |
|---|---|
| Active Ingredient | Tannins 5% (UV) |
| Appearance | Dark brown fine powder |
| Part Used | Green hull (husk) |
| Mesh Size | 80 mesh (95% pass) |
| Loss on Drying | ≤ 6.0% |
| Heavy Metals | Pb ≤ 2ppm, As ≤ 2ppm, Cd ≤ 1ppm, Hg ≤ 0.1ppm |
| Microbiology | Total plate count ≤ 1000 CFU/g, E.coli/Salmonella negative |
| Solubility | Partially soluble in water |
| Storage | Cool dry place, 24 months shelf life |
Physical Characteristics
Appearance: Dark brown fine powder (see specification table above). Fine free-flowing powder, 80 mesh, suitable for direct encapsulation and tableting.
Key Benefits
- Traditional support for digestive and intestinal wellness
- Astringent tannins support gut comfort
- Antioxidant compounds (juglone, polyphenols)
- Traditional herbal cleansing support
- Supports healthy digestive flora environment
- Long history in Western herbalism
Main Applications
Digestive support capsules; intestinal wellness formulas; herbal cleansing blends; traditional supplement formulations.
Recommended Usage
Typical dosage: 300-600 mg per day (5% tannin extract).
Why Choose Our Bulk Black Walnut Husk Extract
- GMP-certified production with ISO 9001 quality system
- HPLC/UV verified active content, batch-to-batch consistency
- Full COA, MSDS and third-party heavy metal testing per batch
- HALAL, KOSHER and organic certifications available
- Flexible MOQ with global export experience to 50+ countries
- OEM/ODM support: capsules, tablets, powder sachets and custom blends
Packaging & Storage
- Packaging: 25kg/drum, double PE bags inside, aluminum foil vacuum bag optional
- Storage: Store in cool, dry, well-ventilated place away from direct sunlight
- Shelf Life: 24 months under proper storage
FAQ About Wholesale Black Walnut Husk Extract
Q: What is the specification?
5% tannins by UV; green hulls of Juglans nigra.
Q: What part is used?
Green hulls (husks).
Q: Is it water soluble?
Partially soluble; fine for capsules and tablets.
Q: Do you provide COA?
Yes, per-batch COA with assay and full tests.
Q: Is it a traditional herb?
Yes, long history in Western herbal medicine.
Q: What is the MOQ?
25kg per drum; samples available.
Inquiry & Cooperation
As a professional botanical extract manufacturer with 20 years of export experience, we supply high-quality Black Walnut Husk Extract at competitive bulk prices. Contact our sales team for spec sheets, COA samples and quotations.


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