Sourcing pharmaceutical and food supplement grade Milk Thistle Extract Silymarin (derived from clean seed kernels of Silybum marianum) demands rigorous chemical characterisation. SV Botanica manufactures and exports fully standardised milk thistle extracts matching both UV-Vis spectrophotometric standards (up to 80% Silymarin) and pharmacopoeial HPLC multi-marker profiles (USP / European Pharmacopoeia standards yielding 30% to 65% total flavonolignans and silybin A+B). Produced under stringent ISO and GMP operations in Nashik, India, every batch is verified for non-detection of ethylene oxide (ETO), non-irradiation, ultra-low residual solvents, and compliance with European Union pesticide MRLs (EC 396/2005).
Milk thistle extract is chemically complex, comprised of a multi-component matrix including silybin A and B, isosilybin A and B, silychristin, and silydianin. Choosing the right standardisation format and extraction medium dictates bioavailability, flowability, and global label compliance.
Standard Dietary Grade
≥80% Total SilymarinExtracted via food-grade acetone/water or hydro-ethanol, refined for high flavonolignan density. The international benchmark for cost-effective liver protection formulas and functional capsules.
Pharmacopoeial HPLC Grade
50–65% Silymarin · 30%+ SilybinEngineered specifically to satisfy strict monograph demands. Assayed for distinct peak areas of silychristin, silydianin, and individual diastereomers of silybin and isosilybin.
Beverage & Sachet Grade
20% · 40% Silymarin (Clear)Silymarin is naturally hydrophobic. This modified formulation uses bio-carrier complexation (dextrin or beta-cyclodextrin) to achieve 100% aqueous clarity without heavy precipitation.
Isolated Active Flavonolignan
≥90% Silybin (A+B)High-potency isolated silybin fractional crystallisation. Designed for clinical research, advanced phytosome lipid complexes, and target nutraceutical formulations requiring precise therapeutic dosing.
Custom extraction solvents (Pure Ethanol, Ethanol-Water, or Degreased Petroleum-Free fractions) can be custom-manufactured at our audited facility for batches ranging from 100 kg to multi-container commitments.
Get CatalogThe global milk thistle derivatives industry is undergoing profound structural changes driven by advanced analytical instrumentation, bio-enhancement technologies, and tightening international contaminant ceilings. B2B procurement professionals must track these macro shifts.
For decades, raw material contracts specified "Silymarin 80% by UV". However, spectrophotometric measurement at 288 nm reads not only target flavonolignans but also other phenolic compounds and polymeric degradation products. Regulatory authorities including the US FDA, European EMA (Herbal Monograph on Silybum marianum), and Australian TGA now insist on individual chromatographic quantification of silybin A, silybin B, isosilybin A, isosilybin B, silydianin, and silychristin. Global brand owners are adjusting specifications to HPLC-validated Silymarin (typically evaluating between 50% and 65% total HPLC content) to prevent cross-border import detentions and pass stringent retailer audits.
The primary therapeutic limitation of silymarin is poor oral bioavailability (often below 5%) due to low aqueous solubility and high first-pass glucuronidation. The nutraceutical industry is rapidly pivoting toward Milk Thistle Phytosomes—co-complexes of standardised silybin with non-GMO sunflower or soy phosphatidylcholine. Modern buyers demand custom particle micronisation (e.g., d90 < 20 microns) and bulk phospholipid-silymarin blends that deliver clinical gastrointestinal absorption up to 5 times higher than standard extracts without elevating daily dosage volumes.
While liver detoxification (NASH/NAFLD adjunctive support and alcohol metabolism recovery) remains the base market for milk thistle, AI-powered health monitoring and consumer research are unlocking new category applications. Clinical inquiries for high-silybin fractions have doubled across metabolic balance formulations (focusing on insulin sensitivity and lipid modulation) and dermatological cosmeceuticals leveraging silymarin’s intracellular glutathione preservation properties. Procurement cycles are diversifying into dual-certified food and cosmetic grade specifications.
Recent international recalls of European and Asian herbal consignments contaminated with 2-chloroethanol (a breakdown marker of ethylene oxide fumigation) have placed botanical sterilisation under extraordinary scrutiny. Simultaneously, tightening limits on Class 2 extraction solvents like ethyl acetate and methylene chloride mean leading formulators require pure ethanol-water extraction systems. SV Botanica provides certified non-ETO, non-gamma irradiated botanical extracts manufactured in facilities that use green solvents and closed-loop evaporation systems.
Avoid expensive supplier disqualification by understanding the direct compositional breakdown between standard UV-grade silymarin and pharmaceutical-grade HPLC milk thistle extracts.
| Technical Parameter | Standard Commercial Grade (UV-Vis) | Pharmacopoeial Grade (USP / EP HPLC) | SV Botanica Export Guarantee |
|---|---|---|---|
| Assay Quantification | ≥ 80.0% Total Silymarin (UV spectrophotometry) | 50.0% – 65.0% Total Flavonolignans (HPLC) | Both UV & HPLC values declared on single CoA |
| Marker Fractionation | Non-specific single wavelength absorption (288 nm) | Silybin A+B, Isosilybin A+B, Silychristin, Silydianin resolved | Full HPLC chromatogram graph supplied with each batch |
| Primary Active Compound | Cumulative polyphenolic estimate | Silybin (A+B) ≥ 30.0% to 35.0% dry basis | Guaranteed minimum 30% Silybin (HPLC) on EP grades |
| Heavy Metal Limits | Pb ≤ 3.0 ppm, Cd ≤ 1.0 ppm, As ≤ 2.0 ppm, Hg ≤ 0.1 ppm | Pb ≤ 1.0 ppm, Cd ≤ 0.5 ppm, As ≤ 1.0 ppm, Hg ≤ 0.1 ppm | Tested by ICP-MS compliant with EU Regulation 2023/915 |
| Residual Solvents | Acetone / Ethanol ≤ 5,000 ppm (USP <467>) | Food Grade Ethanol ≤ 3,000 ppm, Acetone ≤ 500 ppm | Strict headspace GC-MS verified: Solvent < 50 ppm available |
| Pesticide Residues | National general limits | Strict multi-residue GC-MS/MS screen < MRL limits | Full EU 500+ residue screen compliant with EC 396/2005 |
| Sterilisation Method | Variable / Heat / Steam | Validated High-Temperature Short-Time (HTST) Steam | Strictly Non-Irradiated & Zero Ethylene Oxide (ETO) |
SV Botanica operates at the intersection of traditional agricultural excellence and pharmaceutical-grade validation. We supply comprehensive regulatory dossiers that make qualifying us as an approved vendor straightforward for QA directors and FSVP managers.
Every lot undergoes TLC and reverse-phase HPLC verification matching Silybum marianum authentic reference materials, ruling out botanical adulteration.
Ref. USP-NF MonographMilk thistle seeds and finished extracts undergo strict testing for both ethylene oxide and 2-chloroethanol down to 0.01 mg/kg limits.
EU Regulation 2019/1793Heavy metals (Lead, Cadmium, Arsenic, Mercury) verified through Inductively Coupled Plasma Mass Spectrometry meeting strict international standards.
EU 2023/915 & Prop 65Consignments ship with complete pre-shipment CoAs, technical data sheets, safety dossiers (MSDS), allergen statements, and origin documentation.
US FDA FSVP Documentation ReadyAuditing raw material vendors is demanding. SV Botanica provides an enterprise qualification packet for our standardised Milk Thistle Extract before sample shipment.
Sourcing botanical active ingredients requires reliable supply chains, transparent documentation, and chemical consistency. Here is why enterprise dietary supplement manufacturers and brand developers rely on SV Botanica as their primary bulk manufacturing partner.
Processing is carried out in modern cGMP, ISO 9001, and ISO 22000 certified facilities in Maharashtra, India. We maintain full traceability under FSSAI Central Licence and DGFT APEDA registrations.
No waiting on generic trading desks. Receive technical specifications, method validations, chromatograms, and commercial terms within 24 business hours from experienced QA professionals.
We declare both UV and HPLC determinations directly on our Certificate of Analysis. Your factory QA and formulation chemists never face ambiguous analytical values.
Our direct relationships with qualified agricultural cultivators in prime growing regions ensure non-GMO seed purity, stable harvest volumes, and resilient year-round pricing unaffected by spot market spikes.
From air cargo dispatch to full 20ft/40ft container sea shipments, we manage phytosanitary clearances, export bills, and destination-specific documentation to prevent customs holds.
Streamline your supply chain by sourcing Milk Thistle alongside our broader portfolio of 150+ standardised botanicals, including Curcumin 95%, Ashwagandha, Boswellia, Berberine, and Natural Oils.
A transparent four-step procurement process focused on quality sign-off before bulk manufacturing.
Specify target standardisation (UV 80% or HPLC 50%+), mesh size, solvent requirements, and annual volume.
Day 0Receive comprehensive technical data sheet, batch-specific CoA, safety data (MSDS), and firm pricing terms.
Within 24 HoursEvaluate an express lab-grade representative pre-shipment sample with complete HPLC fingerprinted certificate.
Lab Sign-OffCommercial batch production, triple-barrier export packaging, phytosanitary clearance, and shipment dispatch.
Dispatched in 7–14 DaysAnswers to technical, regulatory, and logistics questions asked by procurement teams and R&D chemists evaluating Milk Thistle Extract Silymarin.
Spectrophotometric UV (such as DAB or Chinese Pharmacopoeia UV method) measures absorption across all conjugated aromatic rings at roughly 288 nm. Because it does not separate molecules, other natural seed polyphenols and degradation products are calculated as silymarin, regularly reading 80% or higher. In contrast, reversed-phase HPLC (USP / Ph. Eur.) physically resolves and separately calculates individual isomer peaks: Silybin A, Silybin B, Isosilybin A, Isosilybin B, Silychristin, and Silydianin. An extract showing 80% by UV generally yields between 50% and 65% total active flavonolignans by HPLC. SV Botanica provides both measurements on our CoAs to ensure total clarity for your QC incoming tests.
Historically, manufacturers used ethyl acetate or acetone. However, strict modern international limits (such as European Directive 2009/32/EC and USP <467>) strictly limit residual volatile organics. Today, hydro-ethanolic (pure food-grade ethanol and demineralised water) or water-washed, heavily stripped acetone extraction processes are the standard. SV Botanica utilises closed-circuit food ethanol systems and advanced vacuum distillation to ensure that all Class 2 and Class 3 solvent residues remain far below international limits (typically <50 ppm).
Under Regulation (EC) No 396/2005, the European Union applies exceptionally low default Maximum Residue Limits (often 0.01 mg/kg) on botanical ingredients. Milk thistle seeds can accumulate agricultural chemicals if not cultivated cleanly. SV Botanica uses exclusively certified, unadulterated raw seed sources and validates every commercial lot using extensive 500+ multi-residue LC-MS/MS and GC-MS/MS panels conducted via ISO 17025 accredited analytical laboratories prior to customer export.
Yes. Standard 80% silymarin powder is lipophilic and practically insoluble in aqueous media (<0.04 mg/mL), causing chalky sediment in liquid formats. SV Botanica produces microencapsulated, water-dispersible silymarin grades (available at 20% and 40% active standardisations). These grades instantly dissolve into warm or cold water, producing clear, stable dispersions suitable for functional drinks, effervescent tablets, and single-serve sachets.
Our standard minimum order quantity starts at 25 kg (packaged in heavy-duty food-grade double polyethylene bags within sealed UN-approved fibre drums). For standard stocked grades (UV 80% and USP HPLC grades), dispatch is completed within 7 to 10 working days from payment confirmation. Custom micronised batches (such as ultrafine 120 mesh) or custom silybin isolations require approximately 2 to 3 weeks for full manufacturing and complete analytical release testing.
Every export consignment includes a complete regulatory dossier: Batch-Specific Certificate of Analysis declaring testing methods, HPLC Chromatographic Fingerprint, Heavy Metals Profile (Pb, Cd, As, Hg by ICP-MS), Complete Microbiology Report (TPC, Yeast & Mould, Salmonella, E. coli, Staphylococcus), 500+ European Pesticide Screen, Ethylene Oxide (ETO) & 2-CE Non-Detection Certificate, Residual Solvents Analysis, Non-GMO Attestation, Allergen Statement, and an official Phytosanitary Certificate.
Connect with SV Botanica's technical export specialists. We assist formulators, regulatory professionals, and contract manufacturers in selecting, validating, and importing certified botanical extracts from India.
Specify your required target parameters to receive a formal quotation, representative CoA, and pre-shipment evaluation sample.
