Wholesale Chasteberry Extract Manufacturer & Suppliers

Premium Grade Vitex Agnus-Castus Extract | 20+ Years Global B2B Supply Chain & Custom Standardization

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Scientific Dossier & Global Procurement Guide

Chasteberry Extract (Vitex Agnus-Castus): Active Components & Standardization Standards

Chasteberry (Vitex agnus-castus) has long stood as a foundational botanical in women's endocrinological and reproductive wellness. Modern clinical research confirms that its therapeutic benefits are primarily driven by specific secondary metabolites. As a leading Wholesale Chasteberry Extract Manufacturer, we standardize our extracts to precise concentrations of active markers: Agnuside and Aucubin.

The botanical interacts with dopamine D2 receptors in the pituitary gland, suppressing the hypersecretion of prolactin. For B2B brand owners and formulators, maintaining a reliable molecular fingerprint across manufacturing batches is paramount to ensuring clinical efficacy and regulatory compliance. Our extraction facility employs high-performance liquid chromatography (HPLC) to guarantee that every batch meets the exact specifications required for modern therapeutic formulations.

Key Therapeutic Biomarkers in Our Chasteberry Extract:

Agnuside (Standardized to 0.5% - 2.0% HPLC): The primary iridoid glycoside biomarker used to verify botanical authenticity and track active potency in female hormonal balance formulations.
Aucubin (Standardized to 0.5% - 1.0% HPLC): Another key iridoid glycoside showing strong anti-inflammatory and neuroprotective support characteristics.
Flavonoids (Casticin): Lipophilic compounds that synergistically modulate hormone receptor activities and help maintain long-term ingredient stability.

Choosing the correct extract ratio or standardized concentration depends entirely on the delivery format (tablets, hard capsules, softgels, or liquid tinctures). Our R&D team provides comprehensive chemical documentation, including HPTLC fingerprints, to satisfy the most demanding quality assurance protocols in North America, Europe, and Asia-Pacific regions.

TRB at a Glance

Nanjing Tong Rui Bio-Tech Co., Ltd. (TRB) is a premier technology-driven manufacturer with over two decades of processing and purification experience.

20+

Years Exp.

60+

Countries

State-of-the-Art Factories

Global Compliance

Our manufacturing lines are fully verified and certified to meet high-level regulatory requirements worldwide:

cGMP & ISO Standards
HACCP & FDA Registration
Halal & Kosher Certified
Certified Organic Lines

Pioneering Biotechnology

About Nanjing Tong Rui Bio-Tech Co., Ltd.

Nanjing Tong Rui Bio-Tech Co., Ltd. (TRB), is the China Leading manufacturer and exporter of herbal extracts and its derivatives for more than 20 years. TRB is a technology-based company that combines research and development, production and international market sales.

TRB's rapid development and dedicated service in the plant extract industry over the years has earned us deep industry respect. We have been honored with the 2026 "Global Biotechnology and Life Sciences Award" - "Best Global Herbal Extract Provider 2026".

TRB currently operates three dedicated factories: one specialized herbal extract factory, a bee product factory, and an animal extract processing facility. All are fully equipped and carry key certificates such as GMP, ISO, HACCP, ORGANIC, FDA, HALAL, and KOSHER.

In recent years, TRB has focused heavy capital investment on the research and development of Nootropics products, such as Brain Health Herb Extract, Anti-Aging Herb Extract, and Longevity Herb Extract, gaining highly positive feedback from international brand owners and research institutions.

China's Manufacturing & Supply Chain Advantage

Why global nutraceutical giants rely on Chinese extraction technology for sustainable, consistent, and cost-effective raw materials.

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Advanced Scale & Technology

Our extraction lines utilize continuous countercurrent extraction, supercritical CO2 extraction, and membrane separation technologies. This ensures maximum yield of Agnuside and Aucubin while minimizing thermal degradation and solvent residues, offering a cleaner final product than conventional methods.

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Traceable Botanical Sourcing

We source raw Vitex berries from geographical areas that provide optimal soil and climatic conditions. Our strict incoming QA ensures raw materials are screened for pesticide residues, heavy metals, and species authenticity before entering the production line.

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Unrivaled Cost-Efficiency

Operating out of Nanjing, China, allows us to leverage efficient local logistics, stable energy rates, and a highly skilled workforce. These cost savings are passed directly to our wholesale buyers without compromising compliance or purity standards.

Global Applications & Compliance Matrix

Ensuring seamless market entry with localized formulation support and rigorous regulatory compliance.

Niche Localized Application Scenarios

Our Chasteberry Extract is engineered to fit diverse end-use formulations seamlessly. We customize particle sizes, solubility indexes, and carrier profiles to accommodate various consumer delivery formats:

Women’s Health Supplements: Used globally in PMS relief capsules, cycle regulation chewables, and menopause support tablets.
Liquid Formulations & Elixirs: Water-soluble Chasteberry powder grades that form clear solutions without sediment or unpleasant taste.
Cosmeceuticals & Topical Creams: Standardized extracts incorporated into topical serums designed to soothe hormonal skin conditions.
Veterinary Formulations: Bulk supplies tailored for equine hormone balancing and canine reproductive system health support.

Regulatory and Localization Support

Importing botanical extracts requires strict adherence to regional regulatory frameworks. TRB acts as your compliance partner, offering documents and support specifically tailored to regional challenges:

US Market (FDA & DSHEA): Complete support with GRAS self-affirmation documentation, NDIs, and heavy metals compliance (Proposition 65 limits).
European Union (EFSA): Full PA (Pyrrolizidine Alkaloids) and Pesticide residue compliance in line with EC Regulation No 396/2005.
Middle East & Asia: Certified Halal and Kosher batches, complete with original certificates and traceability maps.
Custom Clearance Documentation: Fast-track customs documentation including COA, MSDS, Allergen Statements, and Non-GMO Declarations.

Procurement & Technical FAQ

Expert answers to critical technical and logistical questions asked by global sourcing agents and R&D managers.

What is the standard MOQ for wholesale Chasteberry Extract orders?

Our standard Minimum Order Quantity (MOQ) for bulk standardized Chasteberry Extract is 25kg (packaged in double food-grade plastic bags inside fiber drums). For custom standardization ratios or pilot formulations, smaller trial quantities may be accommodated upon review by our sales department.

How does TRB ensure batch-to-batch consistency of Agnusides and Aucubin?

We utilize high-performance liquid chromatography (HPLC) to verify active compound concentrations in every batch. We also implement strict raw material control, sourcing only from verified farms with uniform soil conditions. Our computerized extraction parameters ensure time, temperature, and solvent ratios remain consistent.

Are your extracts treated with irradiation or ethylene oxide (EtO)?

No, our premium Chasteberry Extracts are non-irradiated and free from Ethylene Oxide (EtO) sterilization. We utilize advanced heat and steam sterilization techniques to control microbiological parameters, meeting all EU and FDA market limits for clean label ingredients.

What documentation do you provide for regulatory audits?

We provide a complete documentation package for every shipment, including the Certificate of Analysis (COA), Allergen Statement, Non-GMO Declaration, Heavy Metal & Pesticide residue reports (conforming to USP/EP standards), and a flow chart showing the extraction process.

What is the shelf life and storage recommendation for bulk powder?

Our standardized Chasteberry Extract powder has a shelf life of 24 months when stored in its original unopened packaging. It should be kept in a cool, dry place away from direct sunlight, moisture, and heat to preserve the stability of the active iridoid glycosides.