Sennosides, a natural vegetable laxative derived from Senna plant. It helps relieve constipation and stimulate bowel movement so that you can pass your stool more comfortably. Sennosides 8.6mg tablet works by stimulating the lining of the bowel therefore causing a laxative effect. Senna laxative can help reduce symptoms of constipation, gas and bloating by causing a movement of your colon and intestines to naturally eliminate gasses and waste. Puregen Labs Senna usually produces a bowel movement in 6-12 hours. For best results take tablets as directed in the evening before bedtime. Puregen Labs Senna contains 1000 tablets made from premium ingredients for a fraction of the cost.