18 herbs laxative tea made from senna is a world-renowned herb in removing constipation, senna is recognized by British, European, US & Indian pharmacopoeia as traditional medicine and herbal supplement in India. Senna contains sennosides. These compounds work as a laxative by smoothing the muscles as digested food moves through the intestines. Helps to enhance the stool volume and move it out of the colon. Improves digestion, relieves constipation & enhances detoxification.