Quercetin, a highly bioactive polyphenolic flavonoid naturally occurring in abundance within botanical sources like Sophora japonica (Japanese pagoda tree), has emerged as a cornerstone compound in the development of natural respiratory solutions. Clinical studies highlight its role as a natural mast-cell stabilizer and selective inhibitor of inflammatory mediators. In particular, Quercetin acts on the nuclear factor kappa B (NF-κB) pathways, downregulating the synthesis of pro-inflammatory cytokines, including TNF-α, IL-6, and IL-8, which are primary drivers of bronchial hyperresponsiveness and persistent cough.
Furthermore, Quercetin acts as a powerful zinc ionophore. By facilitating the transport of extracellular zinc ions across the lipid membrane into cells, it helps inhibit viral replication pathways in respiratory epithelial tissue. This dual-action pathway—combining broad-spectrum antioxidant protection with targeted anti-inflammatory properties—makes it an indispensable ingredient for global nutraceutical brands targeting bronchial irritation, cough relief, seasonal allergy symptoms, and general lung function support.
China is the global epicenter for botanical extraction, controlling over 70% of the raw material supply chain for polyphenols like Quercetin, Rutin, and Troxerutin. Sichuan and surrounding regions provide optimal growth habitats for Sophora japonica, the primary natural source of commercial Quercetin. By aligning with Chengdu Chenlv Herb Co., Ltd., global buyers tap into a seamless vertically integrated supply chain.
Our extraction facilities leverage advanced column chromatography and crystallization techniques to yield USP/EP compliant Quercetin Dihydrate and Quercetin Anhydrous. The local industrial density in Chengdu enables significant cost-efficiencies, streamlined logistics via the Belt and Road railway systems, and strict compliance with global contaminants controls (heavy metals, PAHs, pesticide residues, and solvent residues). This allows us to provide unmatched batch-to-batch consistency and competitive OEM pricing profiles that Western toll processors cannot match.
The global respiratory supplement market is experiencing a profound shift away from synthetic antitussives and towards clean-label, plant-based bronchoprotectants. Current industry trends highlight several key development vectors:
In the wake of supply chain disruptions and stringent FDA/EFSA regulatory oversight, international pharmaceutical and nutraceutical buyers require more than just raw material suppliers; they require strategic development partners. Chengdu Chenlv Herb Co., Ltd. resolves complex import compliance hurdles by offering comprehensive regulatory dossiers, including complete Allergen Statements, Non-GMO Declarations, TSE/BSE Certificates, and fully traceable supply documentation from crop harvest to final export packaging.
Our macro supply chain solution encompasses dual-sourcing insurance, climate-controlled warehousing solutions, and dynamic custom blending. Whether your market is in North America, Europe, or the Asia-Pacific region, we ensure your Quercetin shipments arrive with zero Customs friction, completely compliant with local botanical import parameters.
Our raw material works across diverse commercial platforms:
Pharmaceutical Grade Cough Formulations: High-purity active pharmaceutical ingredients (APIs) intended for integration into OTC cough syrups, lung detox tablets, and dry powder inhalers designed to soothe bronchial tissues and mitigate chronic cough reflexes.
Nutraceuticals & Functional Foods: Formulating custom immunity gummies, lung-health capsules, and effervescent recovery drink powders featuring high-bioavailability Quercetin complexes.
Veterinary & Animal Nutrition: Providing specialized feed additives containing natural flavonoids to support the pulmonary health and immune defenses of livestock and companion animals, minimizing the reliance on synthetic antibiotics.
Creative designs that elevate your brand. We work closely with R&D departments to formulate unique active ingredient blends.
Eco-friendly packaging aligned with today's values. High-efficiency delivery cycles without compromising purity or consistency.
End-to-end cosmetic and pharmaceutical packaging solutions utilizing green-solvent extraction and clean recycling protocols.
Fast turnaround to meet your timelines. Dedicated project managers update you from production scheduling to marine shipping.
A dedicated team supporting you every step of the way. Internal HPLC, UV, and GC analytical facilities back every batch.
Years of expertise ensuring precision and excellence. Decades of compound extraction experience for complex phyto-compounds.
Driven by the concept of "homology of medicine and food" and modern health needs, plant extracts have gradually become the core raw materials for the development of health care products due to their natural, green and safe characteristics.
From herbal formulas recorded in ancient books to modern innovative drugs, plant extracts occupy the prominent position in the pharmaceutical industry due to their natural active ingredients and unique pharmacological effects.
With consumers' pursuit of natural, safe, and sustainable skincare concepts, plant extracts have become a new favorite in the cosmetics industry due to their mildness, versatility, and biocompatibility, bringing new solutions for skin care.
Plant extracts have shown great potential in improving animal health, enhancing production performance and optimizing culture benefits, and are gradually becoming a research hotspot and new favorite in the field of animal nutrition.
Chenlv Herb provides one-stop contract manufacturing services from lab sample design through commercial distribution.
Communicate with customers to determine product requirements and formulation benchmarks.
Provide a detailed commercial proposal and pricing based on volume & specifications.
Finalize formal legal agreements and detail specific batch parameters and target schedules.
Produce laboratory and pilot-scale samples for physical and chemical customer evaluation.
After customers confirm samples, our GMP facility schedules the commercial scale run.
The quality control lab inspects active assay values, heavy metals and microbiologic purity.
Seamless container packaging, Customs declarations, and delivery of documentation directly to customer sites globally.
Our manufacturing systems and processing facilities are fully verified under the following regulatory schemes:
Recently, the market price of Citrus aurantium raw materials in China has been on the rise, drawing significant attention from the industry. As the new production season (May-June) comes to an end and new supplies gradually enter the market, price fluctuations have become a focal point due to supply and demand dynamics and cost considerations.
As a 'calling card' for leading China's pharmaceutical industry onto the global stage, the 23rd China Pharmaceutical Raw Materials Exhibition (CPHI China 2025) will join hands with the 18th China Pharmaceutical Machinery to present next-generation solutions.
Inviting global industry professionals to connect, build collaborative pipelines, and explore custom synthesis opportunities under GMP guidelines.
For inquiries about our products, spec sheets, custom assays, or updated price lists, please leave your requirements. We will be in touch within 24 hours.
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