Berberine Extract is standardized to contain min. Capsule Size: 500 mg. This product is suitable for Vegans. Manufacturing Date is not older than 2 months at the time of order. Expiry date is two years from the date of Manufacturing. All of our herbal extracts are FREE of any type of fillers or additives like magnesium stearates, gelatin, silicates, gluten, corn, wheat, rice, yeast, starch, titanium dioxide, artificial colors, artificial flavors or preservatives. In order to provide consistency in quality, all of our products undergo following tests. Assay with HPLC / Titration / Gravimetry, Residual Solvent Analysis with GC-HS, Heavy Metal Testing with AAS, Microbiology Analysis, Impurity Profiling and Stability testing. 2-5 weeks to deliver in North America, Europe and most part of the world. DHL takes 3-5 days to deliver.