Radix Dipsaci. Part used: Root. Known as Dipsacus/Teasel Root. Entering meridians: Kidney and Liver. Origin: Hubei, Sichuan and Yunnan. Xu Duan Yan is a PaoZhi processed herb so is more effective at strengthening the function of the Liver and Kidneys. It may also strengthen the tendons and bones, promote blood circulation, continue the physique and prevent abortion. All Phoenix Medicial dry herb and concentrated herbal granules are grown without sulphur, pesticides or herbicides and are grown in the place of origin.