Explore our premium grade natural pharmaceutical ingredients sourced from GMP-compliant manufacturing setups.
An in-depth analysis of the therapeutic value, market evolution, and quality benchmarks of Micronized Purified Flavonoid Fractions.
Diosmin, a naturally occurring flavonoid glycoside primarily isolated from citrus fruits, acts as a cornerstone in the treatment of chronic venous insufficiency (CVI), hemorrhoidal disease, and microcirculatory disorders. Typically formulated as a Diosmin Complex—often combined with Hesperidin in a 9:1 ratio to mimic the clinically validated Micronized Purified Flavonoid Fraction (MPFF)—this compound works by enhancing venous tone, improving lymphatic drainage, and protecting microvascular beds from inflammatory cascades.
With an aging global population and rising rates of sedentary lifestyles, the demand for vascular protection therapies is soaring. Pharmaceutical giants, nutraceutical distributors, and formulation brands are constantly searching for the best Diosmin Complex factories and companies capable of providing stable supply chains, high-purity crystalline forms, and consistent particle size distribution (PSD) profiles.
Clinical data confirms that a 90% Diosmin and 10% Hesperidin formulation operates synergistically to protect capillary integrity, minimize leukocyte adhesion, and reduce venous stasis.
Advanced jet milling systems are required to achieve a particle size distribution of d50 < 2μm. This step is critical for brands aiming to match the pharmacokinetic profile of leading medical brands.
Industrial buyers must ensure that manufacturers possess European Pharmacopoeia (EP) compliance, US DMF documentation, and local GMP certificates to safeguard market access.
For B2B procurement managers and formulation chemists, selecting a supplier goes beyond comparing prices. It requires reviewing analytical profiles, chemical structures, and impurity limits. Below is a comparative overview of key specifications established by top-tier global manufacturers:
| Parameter | Pharmacopoeia Standard (EP/USP) | Premium China Factory Standard | Analytical Method |
|---|---|---|---|
| Diosmin Assay | 90.0% - 102.0% (anhydrous) | 92.0% - 95.0% (Standard MPFF) | HPLC-UV Detection |
| Hesperidin Assay | N/A (Individual limits apply) | 9.0% - 11.0% | HPLC-UV Detection |
| Particle Size (d50) | No official monograph limit | < 2.0 μm (Micronized) | Laser Diffraction (Dry/Wet) |
| Heavy Metals | < 20 ppm | < 10 ppm | ICP-MS |
| Related Substances (Linarin) | < 4.0% | < 2.0% | HPLC |
| Ethylene Oxide (Residual) | Strictly controlled | Negative / Non-detectable | GC-MS |
Empowering global health with science-driven botanical extraction since 2012.
Established in 2012, Chengdu Chenlv Herb Co., Ltd. (Chenlv Herb) is a high-tech enterprise specializing in the research, development, production, and sales of premium botanical extracts and natural active pharmaceutical ingredients (APIs). Operating out of a state-of-the-art 2711㎡ facility in Sichuan, China, we are committed to serving the pharmaceutical, dietary supplement, food, and cosmetic industries worldwide.
By implementing advanced separation, crystallization, and micronization techniques, we ensure our key products, including high-purity Diosmin and Hesperidin complexes, meet international quality standards. Driven by scientific innovation and strict quality control, Chenlv Herb remains a trusted, long-term manufacturing partner for major global brands.
Why leading pharmaceutical and health brand buyers select Chengdu Chenlv Herb
How technological integration and scaling capabilities optimize global procurement costs
In the modern international market, sourcing APIs requires strong supply chain resilience. Over the past decade, Chinese botanical extraction factories have evolved from simple extraction facilities into advanced, digitally integrated Smart Manufacturing (Factory 4.0) complexes.
At Chengdu Chenlv Herb, we leverage these industrial upgrades to offer significant advantages to our global partners:
By blending modern scaling techniques with meticulous quality controls, our production processes reduce operational costs without sacrificing quality standards. This efficiency allows brand owners to reinvest their capital into formulation, marketing, and product line growth.
How our botanical ingredients support diverse, high-growth industries
Driven by the concept of "medicine and food homology", our natural extracts serve as safe, high-purity active ingredients for dietary supplement manufacturers.
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Our raw materials support drug discovery and formulation development, supplying verified active compounds for targeted health solutions.
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READ MOREOur step-by-step contract manufacturing services translate your requirements into finished products
We work closely with your team to review and define key product requirements, target specs, and regulatory standards.
We supply detailed commercial quotations and technical proposals based on your specified production volumes and parameters.
We sign a formal contract outlining delivery terms, intellectual property protections, and quality assurance targets.
Our laboratory produces pilot-scale samples for evaluation, helping verify solubility, purity, and stability profile.
Once samples are approved, we schedule volume production within our GMP-compliant manufacturing facility.
We test the finished batch and issue a Certificate of Analysis (CoA), verifying heavy metals, pesticides, and solvent residuals.
We ship the finished products with complete shipping documents, customs clearances, and technical dossiers.
Need detailed HPLC test chromatograms, heavy metal statements, or pricing? Contact us and our technical team will respond within 24 hours.
Contact US NowOur facility operates under strict international certifications, ensuring compliance with global regulatory demands
Stay updated on the plant extraction industry and our upcoming trade show schedules.
With prices for Citrus aurantium raw materials rising in China, changing supply dynamics are drawing focus to cost-effective sourcing strategies for Hesperidin and Diosmin production.
We invite you to connect with our formulation experts at CPHI China 2025 to discuss customized API solutions and plant extraction innovations.
Join us at the 92nd API conference to discuss sustainable supply chains, regulatory dossiers, and high-purity flavonoid production.
Expert answers to common chemical, regulatory, and logistics questions from professional purchasers
The standard composition for pharmaceutical formulations is a 9:1 ratio of Diosmin to Hesperidin. This formulation matches the clinical data for Micronized Purified Flavonoid Fraction (MPFF), which supports microvascular health and venous tone.
Diosmin is inherently poorly soluble in water. Reducing the particle size distribution (d50 < 2μm) increases the surface area of the compound, enhancing absorption rates in the gastrointestinal tract and improving therapeutic performance.
We do not use Ethylene Oxide at any stage of our extraction or sterilization processes. Our facility relies on heat, filtration, and cleanroom protocols to ensure all batches comply with strict EU and US residue limits.
Yes. For qualified pharmaceutical projects, our regulatory affairs team can provide Drug Master Files (DMFs), stability data, and complete technical dossiers to support your product registrations.
We verify each batch using High-Performance Liquid Chromatography (HPLC) with UV detection. Additional tests include ICP-MS for heavy metals, GC-MS for solvent residues, and laser diffraction for particle size analysis.
Our standard pilot-scale custom micronization orders start at 100 kg. However, we can accommodate smaller evaluation samples during the initial research and product development phases.
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