latin name:hypericum perforatum active ingredients:hypericin testing method:hplc specifications: 1) extracted part: stem, leaf and flower 2) appearance: red-brown powder 3) identification: positive 4) moisture: ≤ 5% 5) heavy metals: ≤ 20ppm 6) assay (hplc): ≥ 0.08% hypericin 7) assay (by uv): ≥ 0.3% hypericin pharmacology function: benpinke nerve supplies as a safe, and regulate feelings of depression and emotional disorders barriers, the elimination of tension and depression and restore self-confidence and to improve sleep, always extract the active ingredients ye lianqiao significant jinsitao su - dna 、 rna aids role to direct role in the avian flu, classical swine fever and foot-and-mouth virus, dan interfere with the reproduction of the virus, and virus propagation stronger effect.