China Kaempferol Quercetin Supplier & Exporter

Premium Grade Natural Flavonoids: Bioavailability, Scientific Efficacy, and Global Scale Integration

The Science and Dynamics of Kaempferol & Quercetin Supply Chains

In the global market for active nutraceutical ingredients, the synergistic combination of Kaempferol and Quercetin represents a crucial vector of therapeutic potential. Both belonging to the flavonol subgroup of polyphenols, these compounds are highly sought after by global formulation specialists in dietary supplements, clinical nutrition, pharmaceutical therapies, and advanced cosmetics. As consumer awareness shifts towards healthy longevity, cellular defense, and mitochondrial optimization, sourcing these compounds from reliable, certified production systems in China has become a focal strategy for purchasing managers globally.

This comprehensive industry analysis serves as an authoritative guide for international enterprise procurement directors, highlighting raw material metrics, structural quality validations, sustainable production infrastructures, and the unique advantages offered by China's leading manufacturing partnerships.

ABOUT US

UniCare is a professional supplier of natural active ingredients. Our products are widely used in various fields such as dietary supplement, food, cosmetics and pharmaceuticals. We focus on product development and quality stability, and insist on growing together with our customers around the world.

UniCare has deep cooperation with several excellent Chinese manufacturers who have complete quality management system certifications, including but not limited to GMP, EUGMP, CEP, ISO9001, ISO22000, and HACCP. Each factory has independent testing capabilities and is equipped with advanced and efficient testing equipment to ensure the high quality and long-term stability of each batch of products.

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UniCare About Us Background UniCare Facility

Industrial Scale & China Factory Extraction Advantages

Chinese botanical extraction plants have evolved from basic processing hubs to global leaders in automated, compliant, and highly pure chemical isolation.

Raw Material Cultivation Dominance

China is home to the world's most extensive cultivation fields of Sophora japonica (Luzhou, Shaanxi, and Guangxi regions), the primary source for industrial Rutin extraction, which is enzymatic cleaved to yield pharmaceutical-grade Quercetin and derivative Kaempferol. Direct integration prevents raw material volatility.

Supercritical Extraction & Purity

By employing low-temperature countercurrent extraction technology, high-vacuum concentration, and dynamic column chromatography purification, Chinese plants ensure that Kaempferol and Quercetin retain maximum molecular activity while keeping residual solvents near zero, comfortably meeting global regulatory specifications.

Highly Competitive Unit Costs

Vertical industrial integration, energy cost optimization, and localized equipment manufacturing enable Chinese exporters to supply premium-grade flavonoid products at a cost structure that is far more competitive than Western alternatives, without compromising analytical compliance.

Company Philosophy

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Discover and create the new value of herb

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Continuous innovation and improvement

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With the most advanced technology to produce the highest quality products

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Make the employees happy and give back to the community

Advanced Production System

UniCare attaches great importance to the hardware conditions of production equipment and has the largest and most advanced extraction factory in China. The entire production line in UniCare is controlled by a modern, intelligent, automatic control system. Until now, UniCare has built up two GMP workshops, containing six multi-functional extraction lines, among which there is the only production line for Ginkgo Biloba Extract of acetone process in the whole China. Here are several other production lines including fermentation production lines and Chinese medicine pieces. A total of 30,000 tons of various Chinese medicine plant raw materials can be processed each year.

Production Hardware

Manufacturing Credentials & Infrastructure

  • GMP
    China GMP Certification: Facility fully certified and audited under native GMP standards.
  • EU-GMP
    EUGMP & CEP Certification: Globally recognized certifications, including CEP for Ginkgo Biloba Extract.
  • Automation
    Automated Control: All extraction loops utilize real-time DCS automation for temperature, pressure, and flow rates.
  • Extraction Tech
    Advanced Extraction: Multi-functional loop design optimizing yield and preserving delicate flavonoid structures.
  • Throughput
    30,000 Ton Annual Capacity: Large-scale processing facility mitigates raw material shortage risks.
  • Lines
    Six Specialized Lines: Includes three dynamic countercurrent extraction lines and multiple high-capacity vessels.
  • Acetone Process
    EUGMP Acetone Process: The only extraction line of its kind in China offering exceptional solvent recovery and purity.
  • Fermentation
    Enzyme-Modified Fermentation: Six 20-ton fermentation tanks to enable biosynthesized flavonoids.
Production facility 1 Production facility 2 Production facility 3 Production facility 4 Production facility 5 Production facility 6 Production facility 7 Production facility 8

The Biological Synergy of Kaempferol & Quercetin

Kaempferol (3,4',5,7-tetrahydroxyflavone) and Quercetin (3,3',4',5,7-pentahydroxyflavone) are closely related plant metabolites that work in tandem to suppress cellular senescence, regulate inflammatory cytokines, and stimulate mitochondrial energy production. Their combined application has become a benchmark in longevity science (senolytics) and complex immunological formulas.

Crucially, pharmacological studies demonstrate that when co-administered, these molecules increase systemic bioavailability. Quercetin inhibits specific intestinal enzymes that would otherwise rapidly degrade Kaempferol. This allows higher systemic absorption of Kaempferol, magnifying its antioxidant and cardioprotective effects. For global brands, selecting a single source capable of supplying both high-purity compounds allows for optimized formulation designs and simplified vendor management.

Global Market Trends & Specialized Application Scenarios

Anti-Senescence Products

The rise of cellular rejuvenation therapeutics has driven demand for flavonoids. Combining Quercetin and Kaempferol creates a powerful senolytic supplement that selectively targets and eliminates damaged, aging cells, supporting tissue health and longevity.

Nutricosmetic Skin Defense

Premium cosmetics incorporate Kaempferol and Quercetin for their ability to inhibit collagenase and elastase enzymes. Their natural UV-protective properties block photo-aging pathways, making them highly valued in clean-label anti-aging skincare products.

Active Sports Nutrition

With their ability to stimulate mitochondrial biogenesis and improve cellular oxygenation, these flavonoids help reduce post-exercise muscle soreness and accelerate tissue recovery, making them key ingredients in clean, natural sports supplements.

Quality Control System & Analytical Validation

United New Life has established a leading and complete quality control system, and strictly controls the high quality of products in accordance with the quality system.

With advanced testing instruments, strict control of product quality, to provide every customer with high quality products. Detectable items are: Signature component detection (HPLC or UV), solvent residues GC, pesticide residues (organochlorine detection) GC-MS-MS, heavy metals (lead, arsenic, mercury, cadmium, copper) ICP-MS microscopic identification, moisture, dry weight loss, ash, microbial limits, thin layer identification, weighing, conductivity, PH, sulfur dioxide residue, routine detection, etc.

Important testing instruments are: Two UHPLC Agilent 1290 ultra-high performance liquid chromatographs, four HPLC Agilent 1260 high performance liquid chromatography sets, There are two HPLC Shimadzu LC-20AT high performance liquid chromatograph, two HPLC Diane CU3000, two Shimadzu evaporative light scattering detector 2000ES, one Shimadzu GC2010 gas chromatograph, and one Shimadzu AA-7000 atomic absorption system.

Quality Parameter Analysis Details & Specifications
Active Ingredient Analysis Assay verification, specific chromatogram fingerprint identification
Hazardous Substance Analysis Heavy metals, pesticide residue screening, residual solvents GC
Microbe Analysis Bacterium, Escherichia coli, Yeast & mould, specific microbial tests
Raw Material Control Pesticide residue, allergy origin, GMO status, traceable origin mapping
Laws & Regulations Confirmation Continuous regulatory tracking for compliance in China, EU, US, and beyond
Stability Test Shelf life validation based on long-term stability chambers
Physical/Chemical Parameters pH value, moisture content, ash, optical rotation, particle size distribution, bulk density
Central Analytical Lab Instrumentation Capacity
UHPLC, Agilent 1290 (×2) HPLC, Agilent (×4) HPLC, Shimadzu LC-20AT (×2)
ELSD, Shimadzu 2000ES (×2) Shimadzu GC-2010 (×1) Shimadzu AA-700 (×1)
Lab 1 Lab 2 Lab 3 Lab 4 Lab 5

R&D & Raw Material Planting and Procurement

R&D Lab Works

R&D Innovation

UniCare invests 10% of our annual net profit in research and development. In addition to optimizing and developing the existing natural plant extraction process, we have also established a professional R&D department for the natural fermentation products. By increasing investment in natural fermentation products, we try to break through the traditional processes and disrupt industry development.

UniCare has deep cooperation with Beijing University of Chemical Technology in the field of fermentation, jointly developing and transforming the new raw materials of pharmaceutical, cosmetic, and natural health products into mass-produced products.

Cultivation fields

Raw Material Planting and Procurement

In order to control raw materials more efficiently and with higher quality, a raw material procurement system has been established, which extends procurement to every piece of planting land and can trace the raw materials of each batch of products. The storage of raw materials is operated according to the advanced quality management system process, and the content of active ingredients, moisture, ash, heavy metals, pesticide residues and other items of raw materials are strictly controlled.

At the same time, in order to further ensure the high quality of important products, UniCare cooperated with planting farmers to establish ginkgo leaf planting bases, epimedium planting bases, phellodendron planting bases, olive leaf planting bases, etc. Some of these bases are planted strictly in accordance with the GACP management model. In addition, we cooperate with seedling research and development companies to develop high-content seedling cultivation, and cultivate better seedlings through hybridization or gene optimization, so as to continuously reduce unit costs to benefit users.

Procurement Solutions for Global Brand Manufacturers

Global enterprise procurement goes beyond simple ingredient purchasing; it requires securing a stable, compliant supply chain. Large-scale brands operating in highly regulated environments like the FDA (United States), EFSA (Europe), or PMDA (Japan) require rigorous documentation, consistent batch-to-batch quality, and absolute transparency.

Customized Extraction Ratios & Particle Customization

Every product formulation requires specific properties. For capsule manufacturers, powder density and particle size distribution are critical to preventing assembly line downtime. For drink formulations, cold-water solubility is key. UniCare provides customizable solutions, including micronized flavonoid powders down to 80-100 mesh, granulated options for direct compression, and carrier-free formulations to meet strict clean-label requirements.

Comprehensive Document Packages (EDMF / MSDS / COA / GACP)

Our regulatory support team simplifies compliance checks by providing comprehensive document packages. We provide complete Technical Construction Files (TCF), Allergen Statements, Non-GMO declarations, pesticide residue profiles compliant with European Pharmacopoeia (EP 2.8.13), and heavy metal assays. This ensures smooth custom clearance and rapid domestic regulatory review.

Industrial Technical FAQ for Procurement Directors

What are the primary botanical origins used for your Quercetin and Kaempferol?
Our Quercetin is predominantly derived from the dried buds of Sophora japonica L. (Flos Sophorae), which contains high levels of Rutin. The Rutin is isolated and hydrolyzed using natural food-grade enzymes or diluted acid to yield Quercetin. Our Kaempferol is produced either through extraction from Sophora japonica or synthesized from natural precursor catechins, maintaining high assay limits (up to 98% by HPLC).
How does UniCare handle heavy metal and pesticide residue compliance for European and US markets?
Every batch of raw material undergoes rigorous testing. We screen for over 500 pesticide residues using GC-MS-MS and LC-MS-MS, ensuring compliance with EPA and USP <561> regulations. Heavy metals (Lead, Cadmium, Mercury, and Arsenic) are measured using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to guarantee lead levels stay below 0.5 ppm, satisfying strict California Proposition 65 limits.
What are the MOQ (Minimum Order Quantity) and standard delivery lead times?
Our standard MOQ for high-purity Quercetin and Kaempferol starts at 25 kg (one fiber drum). For pilot batches and R&D formulation validation, we can offer trial shipments starting at 1 kg. Standard lead times for regular stock items are 5 to 7 working days from our factory in China to port delivery.
Do your production sites allow regular on-site customer inspections?
Yes, we welcome on-site audits. Customers or third-party validation companies (like SGS or Intertek) can audit our facilities by coordinating with our sales department. We provide full access to our batch records, validation documents, and cleanroom areas.