... (sennoside A+B): 20% ,60%,90% byHPLC Senna leaf extract, folium sennae extract, sennoside specifictions: Products: Folium sennae P. ... E. (sennoside A+B) (1)Senna leaf extract(sennoside A+B) ≥ 20% HPLC (2)Senna leaf extract(sennoside A+B) ≥ 60% HPLC ... (3)Senna leaf extract(sennoside A+B) ≥ 90% HPLC ...