What is the lead time for production?

The lead time is within 15 workdays for both peak and off-season periods.

Can the product be customized?

Yes, we offer flexible customization from samples.

High Natural Sophorae Japonica Extract Quercetin

Name: High Natural Sophorae Japonica Extract Quercetin
Brand: Kingherbs Limited
SKU: 683806911

Hunan, ChinaKingherbs Limited

US$56.90-95.90

1 kg

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Certification

ISO, FDA, Kosher

Assay Method

HPLC, UV

Model NO.

117-39-5

Application Form

Paste, Tablet, Capsule

Application

Health Care Products, Medicine

State

Fine Yellow Crystalline Powder

Extract Source

Pagodatree Flower Bud

Product Name

Quercetin

Botanical Source

Sophorae Japonica

Plant Part Used

Pagodatree Flower Bud

Appearance

Fine Yellow Crystalline Powder

Solubility

Soluble in Aqueous Alkaline Solution.

Molecular Formula

C15h10o7

Molecular Weight

302.23

Transport Package

Packed in Fiber Drum, LDPE Bag Inside. Net Weight:

Specification

Quercetin

Trademark

Kingherbs

Origin

China

HS Code

2938909090

Production Capacity

5000kg/Week

Key features

High Purity Options: Available in 95% (HPLC) and 98% (UV) purity grades.

Antioxidant Protection: Activates cellular glutathione production for robust antioxidant defense.

Immune & Allergy Support: Stabilizes mast cells to reduce histamine release and allergic reactions.

Metabolism & Weight Management: Blocks new fat cell formation and induces death in existing fat cells.

Nervous System Support: Protects nerves from stress-induced damage and supports cognitive function.

Cardiovascular Health: Enhances nitric oxide production to support healthy blood pressure and circulation.

Flexible Customization: Offers flexible customization from samples for various application forms.

Certified Quality: Certified by ISO, FDA, and Kosher standards for safety and quality.

Company profile

Importers and ExportersYears of Export ExperienceExperienced TeamIn-stock Capacity

Kingherbs Limited

Hunan, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Flexible customization CertifiedExport Year: 14 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤9.06h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryKingherbs Limited is identified as a factory and limited company supplying Saw Palmetto Extract. It operates more than 10 production lines, reports plant-extract output of 500 tons, maintains in-stock capacity, and serves domestic and multiple overseas markets. The supplier supports customization from samples and flexible customization, but reports no new products in the past year, no ODM service, and no SDK. It has participated in VITA FOODS EUROPE 2025 but has no overseas agents, branches, warehouses, or showrooms. Service-control documentation is incomplete: no written corrective-action or complaint-handling procedures or records were provided, and the quality-assurance status is unknown. Financial records are indicated for 2022–2024, but their results are not provided. The supplier passed neither a clearly stated audit outcome nor certification details in the available information; the audit result is recorded as 0 without an explained evaluation scale.

Supplier typeThe supplier is explicitly classified as a factory and a limited company, with no indication that it belongs to a larger company group. Its primary product is Saw Palmetto Extract, and the audited company is named Kingherbs Limited.

After-Sales capabilityThe supplier has participated in an offline trade show, but it has no overseas agents or branches, overseas warehouses, or overseas showrooms. More importantly, no written corrective and preventive action procedures or records and no written customer-complaint handling procedures or records were provided, limiting evidence of formal after-sales capability.

R&D capabilityThe supplier reports no new products during the past year, no ODM service, and no available SDK. These explicit limitations indicate weak evidence of ongoing product innovation or software-development support.

Production capacityThe supplier operates more than 10 production lines, reports plant-extract output of 500 tons, has in-stock capacity, and serves domestic and several international markets. It also states an off-peak lead time within 15 working days, although outsourcing procedures and manufacturing contracts are listed as unknown.

Customization capabilityThe supplier explicitly provides customization from samples and flexible customization. This supports a positive assessment for customer-specific product adaptation, although the same slice confirms that ODM service is not available.