Skyherb is a Kosher, ISO, FoodGMP and QS certificated leading manufacturer of botanical extract in China. We keep researching and producing Astragalus Extract for many years and can provide our customers high quality product in large quantity. Product Description: Plant Original: Astragalus Membranaceus Skyherb can provide the specifications of Astragalus extract as follow: Astragaloside: 0.3%, 5%, 10%; tested by HPLC Polysaccharises: 40%, 70%; tested by UV Please feel free to contact us for more details: sales[at]skyherb dot cn