Pure Quercetin Powder

Product Name: Quercetin Powder
Active Ingredient: Quercetin
Specification: 95%/98%
Test Method: HPLC/UV
Appearance: Yellow Greenish Powder
Certifications: ISO9001,FSSC22000,cGMP,KOSHER,HALAL,VEGAN,FDA,ORGANIC(EU),ORGANIC(NOP)
Packing Size: 25kg/drum
Transportation: Courier, Air, Ocean
Delivery: Ready stock, Prompt and Secure Shipment
Our services:Customized production and packaging

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Product Description

Premium 99% Pure Quercetin Powder for Nutraceutical & Dietary Supplements

Shaanxi Hongda Phytochemistry Co., Ltd. is a leading company in extracting high-quality pure quercetin powder from plants. We specialize in the production and development of natural Plant Extracts for the health and pharmaceutical industries. Our Sophora japonica extract quercetin powder is mainly extracted from natural Sophora japonica, which ensures the sustainability and traceability of the supply chain. The production process of Shaanxi Hongda Quercetin Bulk Powder first uses ethanol or water extraction, then uses advanced methods such as crystallization and chromatography for purification, and finally spray drying to produce a fine powder.

This product has a purity of ≥98% and is strictly tested by high-performance liquid chromatography (HPLC) and ultraviolet spectrophotometer (UV) to meet international standards such as USP. Each batch of our quercetin is accompanied by a certificate of analysis (CoA), which lists indicators such as heavy metals (≤10ppm), microbial limits (none), moisture content (≤5%), and ash residue (≤0.5%). Our factory also has FSSC 22000, ISO 9001, HACCP and organic certifications to ensure that the production process complies with cGMP regulations.

For inquiries or customized specifications, contact us at duke@hongdaherb.com. Stored in a cool, dry environment, this product maintains optimal efficacy for 24 months.

100% NATURAL SOPHORA JAPONICA EXTRACT, QUERCETIN POWDER 95% factory and manufacturers |

Our Pure Quercetin Powder: Why Choose It?

With 99% HPLC-verified purity, you can make pills, sweets, or powders work better.
Pick from options that are organic and not genetically modified. Maintain clean-label compliance with ease.
Make the drug more bioavailable by choosing a form that dissolves in water or is bound to a liposome.
All of the following standards are satisfied: ISO9001, FDA, EU, Halal, and Kosher.
Hongda enhances the specific surface area of its particles through physical modification, making the powder more easily bind to carriers such as lecithin. In popular oil capsule or emulsion systems, our quercetin dispersion uniformity is improved by 40%, meaning your customers can achieve a stronger body feel with less additive.
For high-speed tableting processes: Hongda utilizes multi-stage vibrating sieving technology to control the powder's angle of repose within an ideal range. Our raw materials exhibit excellent flowability after mixing with excipients, preventing stratification due to static electricity or density differences.

Our factory

Product Parameters

ITEMS	SPECIFICATION	RESULT	METHOD
Content	Quercetin Dihydrate≥95%	96.13%	HPLC \|\| USP<621>
Content	Quercetin Dihydrate≥98%	98.6%	UV \|\| USP<851>
Identification	Consistent with quercetin control spectrum	Conform	USP43
Identification	λmax =371	Conform	USP43
PHYSICAL CHARACTERISTICS
Particle Size	NLT 95% Through 80 mesh	Conform	Analytical sieving \|\| USP <786>
Loss on Drying	NMT 12.00%	7.64%	USP <731>
Total Ash	NMT 0.50%	0.02%	USP <281>
Bulk Density	Between 14-21g/100ml	Conform	USP <616> Method I
CHEMICAL CHARACTERISTICS
Heavy Metals(as Pb)	NMT 10ppm	Conform	USP <231> Method II
Arsenic (As)	NMT 2ppm	Conform	ICP-MS
Lead (Pb)	NMT 2ppm	Conform	ICP-MS
Cadmium(Cd)	NMT 1ppm	Conform	ICP-MS
Mercury(Hg)	NMT 0.1ppm	Conform	ICP-MS
MICROBIOLOGICAL CHARACTERISTICS
Total Plate Count	NMT1000cfu/g	80cfu/g	USP<61>
Total Yeast & Mold	NMT100cfu/g	10cfu/g	USP<61>
E.Coli	Not Detected in(g) 10	Not Detected	USP<61>
Salmonella	Not Detected in(g) 25	Not Detected	USP<61>
Staphylococcus	Not Detected in(g) 10	Not Detected	USP<61>
Packing and Storage	Polyethylene bag with cardboard drum. 25kg net. Store in tight, light-resistant containers, avoid exposure to direct sunlight, moisture and excessive heat.

Versatile Applications for Health Innovations

Our Pure Quercetin Powder powers next-gen formulations:

Application	Benefit	Recommended Grade
Immune Support Gummies	Enhanced bioavailability	Water-Soluble (98%+)
Antioxidant Blends	Synergy with Vitamin C/Zinc	Organic (95%+)
Sports Recovery Drinks	Reduced inflammation markers	Premium (99%+)

Customized Formula Services

Immune System Combination: Quercetin + Vitamin C + Chelated Zinc. The world's most popular immune system combination. Quercetin, as an ion carrier, accelerates the entry of zinc ions into cells.

Longevity Intervention: Quercetin + Fisetin + Niacinamide (NMN). A precise solution for clearing aging cells in middle-aged and elderly individuals.

Athletic Performance and Recovery: Quercetin + Curcumin + Bromelain. Utilizing its anti-inflammatory properties, it reduces oxidative stress and muscle soreness after high-intensity training in athletes.