We provide high content resveratrols with a big quantity and very competitive prices. Polygonum Cuspidatum is tadeshina plant. The dry rhizome and roots of Polygonum Cuspidatum Sieb. et Zucc.have such functions as dispelling the wind,driving away the wet,relieving extravasated blood ,stopping pain,relieving a cough and reducing phlegm.they are indicated in arthralgia, heat jaundice,amenorrhoea, ...