China Best Botanical Extract Factories & Manufacturing Hubs

Every commercial batch delivered by Gavra Bio-Tech is accompanied by a comprehensive Certificate of Analysis (COA) specifying: active content quantification via validated HPLC, UV-Vis, or LC-MS methods; physical parameters (mesh particle size distribution, bulk tapped density, loss on drying); residual solvent compliance (ICH Q3C guidelines via Headspace GC); heavy metal profiling (ICP-MS for Pb, As, Cd, Hg < 10 ppm total); and micro-biological plate counts (total viable count, yeast & mold, absence of E. coli, Salmonella, and Staphylococcus aureus). Additional technical files including MSDS/SDS, allergen statements, BSE/TSE statements, and production flowcharts are available on request.

Adulteration—such as spiking low-grade extracts with cheap synthetic actives or extraneous nitrogen compounds to inflate UV spectrophotometry readings—is combated by deploying high-resolution chromatographic techniques. Our facility cross-verifies active compounds using tandem mass spectrometry (Waters LC-MS) and thin-layer chemical fingerprinting (Swiss CAMAG HPTLC). By matching retention times, fragmentation patterns, and characteristic botanical spectrum signatures against verified USP reference standards, we guarantee chemical integrity and prevent the pass-through of synthetic adulterants.

To accommodate laboratory R&D trials and small-batch pilot validation, our standard Minimum Order Quantity (MOQ) for most high-potency plant extracts, cosmetic active powders, and specialized vitamins starts at 1 kg. Highly concentrated peptides (such as GHK-Cu, SNAP-8, Palmitoyl Tripeptides) can be ordered from 1 g to 10 g trial units. Bulk functional sweeteners (such as Sodium Cyclamate) and high-volume fruit powders are supplied in standard 25 kg fiber drums. Free evaluation samples (20 g to 50 g) are regularly supplied to qualified enterprise formulators upon receipt of technical application requirements.

We strictly prioritize environmentally friendly and food-grade extraction media. Standard processes utilize deionized water, food-grade grain ethanol, or subcritical/supercritical CO2. Chlorinated solvents (Class 1, such as benzene or carbon tetrachloride) are entirely prohibited within our GMP facility. Residual ethanol and ethyl acetate concentrations are systematically stripped through low-temperature vacuum evaporation and multi-stage spray drying, consistently achieving residual limits well beneath European Pharmacopoeia (EP 5.4) and US FDA benchmarks (typically < 3,000 ppm for Class 3 solvents).

Yes. Beyond pure raw ingredient supply, our manufacturing workshops maintain cleanroom capacity for full OEM / private-label manufacturing. Our capabilities encompass customized particle micronization (down to 200 mesh), customized compound blending and granulation, vegetable (HPMC) and gelatin two-piece encapsulation, tablet compression with enteric coating, and pectin-based functional gummies. Formulators can provide proprietary formulas or partner with our chemical engineers to optimize stability, taste-masking, and dissolution kinetics.

We support standard Incoterms 2020: EXW, FOB (Shanghai/Qingdao), CFR, CIF, CIP, and complete door-to-door Delivered Duty Paid (DDP) for North American, European, and Southeast Asian commercial hubs. Airfreight parcel shipments are dispatched via FedEx, DHL, and specialized air courier channels, complete with customs documentation (commercial invoice, packing list, HS Code classification). Commercial payments are settled via international telegraphic transfer (T/T), confirmed Letter of Credit (L/C), credit card, or Western Union in USD, EUR, or CNY.