Quercetin Powder Bulk
Botanical Source: Sophora japonica L.
Appearance: Yellow fine powder
Specification: 95%~98% Quercetin
Used Part: Dried flower buds
Packing: 1kg/bag,5kg/box,25kg/Drum
Sample :Free Sample Available
Stock:In Stock
Delivery Time:Within 1-3 working days after payment
Certificate : ISO/HACCP/FDA Registration/Kosher/Halal
- Free Samples
- Quality Assurance
- 24/7 Customer Service
Product Introduction
High-Purity Quercetin Powder Bulk - Premium Natural Flavonoid Extract for Health Supplement Manufacturing
Yanxi Biotech offer Quercetin Powder Bulk that is isolated from Sophora japonica flower buds and has a great purity of 95%-98%. Our factory has been manufacturing natural ingredients for over a decade with stringent ISO 22000 & HACCP certifications since 2010. It is a yellow fine powder, 100% thru 80-mesh screen with particle density suitable for capsule filling and microbiological control less than 1000 cfu/g. All our products are tested for heavy metals (≤10ppm) and moisture control (≤5%) to meet the standards of pharmaceutical grade quality for supplement producers across the globe.
We do all of the growing and extracting ourselves, so we can provide this premium product at an internationally competitive price level.

Technical Specifications & Quality Parameters
Our botanical extract maintains consistent quality through controlled manufacturing processes and comprehensive testing protocols.
| Item | Specification |
|---|---|
| Product Name | Quercetin Powder Bulk |
| Botanical Source | Sophora japonica L. |
| Active Ingredients | Quercetin |
| Specification | 95%~98% Quercetin |
| Appearance | Yellow fine powder |
| Particle Size | 100% pass through 80mesh sieve |
| Loss on Drying | ≤5% |
| Ash Content | ≤5% |
| Heavy Metals | ≤10 ppm |
| Total Plate Count | < 1000 cfu/g |
| Yeast & Mold | < 100 cfu/g |
| Sample | Free Sample Available |
| Package | 1kg/bag, 5kg/box, 25kg/Drum |
| Shelf Life | 24 months under sealed and proper storage |
The melting point exceeds 314°C, demonstrating exceptional thermal stability for tablet compression and encapsulation processes.
Superior Bioactive Compound for Wellness Applications
High-purity quercetin is a powerful natural flavonoid that supports many health pathways. The chemical is a potent scavenger of radicals and is useful in antioxidant defence compositions.
The molecular integrity of the C15H10O7 structure is maintained by our extraction procedure. The yellow crystalline powder is easily dispersed in the production environment. This allows for easy integration in a wide variety of production lines.
Carbon 14 testing can verify the botanical source is of natural origin. Our plant-based extract has real phytochemical profiles that are distinct from synthetic options. It's an important distinction for firms hoping to market themselves as clean label.

Manufacturing Advantages for B2B Partners
Bulk supply solutions solve the greatest formulation issues in supplement manufacturing. The particle size of 80 mesh allows good mixing with excipients. The range of tapped densities allows accurate estimations of capsule fill weight.
The powder is soluble in ethanol and alkaline solutions for use in liquid applications. This adaptability allows formulators to formulate a wide variety of delivery strategies. Manufacturers might combine it with absorption enhancers such as piperine for better bioavailability.
Low moisture content (≤5%) to prevent caking during storage and handling. Your production crew will love the free-flowing qualities during dosing operations. Heavy metal compliance takes the load off downstream testing.
Thermal stability up to 314°C allows conventional pasteurisation and tablet compression. Avoid alkaline pH above 7 in heat, which speeds up deterioration. Proper formulation chemistry extends the shelf life of finished product.
Versatile Applications Across Industry Segments
Quercetin Powder Bulk is used by makers of health supplements in their immune support products. The natural features of the chemical fit perfectly with the market demand for botanical-based additives. Standard dose is 250mg to 1000mg per serving.
Cosmetic formulators use the extract for its antioxidant properties. The yellow pigment is a natural colourant for use in skincare treatments. Stability profile is suited for cream, lotion and serum compositions.
Ingredient used by functional beverage makers for wellness drink lines. Although water solubility is still limited, correct solubilisation processes allow for clear solutions. Combining with complementing botanicals provides synergistic effect profiles.
The positioning of sports nutrition brands is focused on recovery and anti-inflammatory. The chemical helps control oxidative stress after exercise. The network effect of antioxidants is enhanced when combined with other flavonoids.
Packaging & Shipping Solutions
We provide customisable packing configurations to match your order volume. Aluminium foil bags, double polyethylene lined, 1 kg for small size testing. Medium volume purchases are shipped in 5kg boxes with a moisture barrier.
25kg fibre drums with food grade inner liners are used for bulk orders. This container protects against light and moisture. All containers comply with international shipping rules for botanical extracts.
Free samples for quality evaluation before bulk order commitment. Our logistics team manages global shipping thru reputable freight partners. 3. Delivery time: Generally 1-3 working days after payment is confirmed for items in stock.
Local warehousing alternatives for European & US customers. This cuts down lead times and simplifies customs procedures. Proper labelling with batch number, manufacturing date and certificate of analysis.

Why Choose Yanxi Biotech?
We begin with farmed Sophora japonica sources in our integrated supply chain. This vertical control guarantees raw material traceability and quality consistency You eliminate the volatility that is prevalent with multi-source purchasing.
Superior extraction technology to maximise production and preserve the integrity of bioactives. The facility is certified to ISO 22000, HACCP, Kosher and Halal standards. These credentials can help you to speed up your ingredient approval processes.
Our botanical substances are constantly delivered in 100+ countries . Thru this export experience, we have learned about the documentation requirements across markets. We fully support you in making your regulatory compliance easier.
Technical consultation helps to optimise formulation parameters. We provide application support for various delivery systems. You get experienced guidance whether you are developing pills, capsules or functional foods.
We can offer competitive prices since we produce in mass quantities and deal directly with the manufacturer. No middlemen markup your ingredients. Volume discounts encourage partnerships and long-term engagement.
Responsive customer service will respond to enquiries during business hours. Real-time visibility into inventories eliminates surprise supply disruptions. Quality complaints are acted upon immediately using inquiry and resolution procedures.

FAQ
Q: What is the difference between Quercetin Dihydrate and Quercetin Anhydrous?
A: Dihydrate form has water molecules in its crystal lattice. It has assay 85-95% and is more stable and cost effective. Anhydrous versions eliminate water for 98%+ potency, but must be controlled for humidity because of their hygroscopic nature.
Q: How can finished products be improved for bioavailability?
A: Crystalline quercetin that is normally supplied is poorly absorbed. Micronization to reduce particle size. Combination with piperine or bromelain. Use of phytosome and liposomal delivery technologies to enhance plasma levels.
Q: Is your quercetin natural or synthetic?
A: Our product is 100% from Sophora japonica extraction. Botanical origin is confirmed thru carbon-14 testing and particular impurity profile to distinguish from synthetic production procedures.
Q: What storage conditions prevent quality degradation?
A: Store in fibre drums with twin polyethylene liner bags. Do not set in direct light, sources of moisture or metallic surfaces. Colour shifts from yellow to brown with oxidation, suggesting a loss of quality.
Q: Is the powder stable to heat processing conditions?
A: High melting point (>300°C) that allows for tableting and standard pasteurisation. But do not combine alkaline pH circumstances with high temperatures, which accelerate the breakdown of molecules.
Request Your Sample Today
Ready to evaluate Quercetin Powder Bulk for your formulation needs? Contact our technical sales team at info@yanxiherbs.com for complimentary samples and certificate of analysis documentation.
Send Inquiry










_1787033972542.webp)