Regular bowel movement is an indication of robust digestion and metabolism. Constipation is when a person has less than three bowel movements a week or exceptionally difficult voiding of the bowel. The reason may be any of dehydration, lack of dietary fiber, physical inactivity or medication side effects.ST powder which contains Triphala, Senna and Turpeth is a potent laxative that tackles constipation in a wholesome manner.