plant extract(info3@sports-ingredient.com)Active compound is Puerarin and isoflavone all tested by UV.It is used as remedy for diaphoretic, antispasmodic, muscle relaxant, antipyretic. It is also used for fevers caused by heat in colds and influenza and for stiff neck and shoulders. We can supply Kudzu Root Extract Powder at any quantities with competitive prices and specification needed. So please contact us for more specification. Our packing type is Double-decker vacuum plastic, 2.5kgs/bags,25kgs/carton.