An herbal answer for bowel regularity Promotes digestive system health A traditional favorite in northern Africa and southwest Asia Looking for an effective regularity aid? When you’re trying to promote healthy bowel function, the herbal approach is the best. For hundreds of years, people in northern Africa and southwest Asia have treasured senna leaf for its unique ability to stimulate healthy bowel function. Today, Senna Leaf is more popular than ever as more and more people are seeking herbal alternatives for proper digestive system health.