Unlike other colon cleansing products, 7 Day Colon Cleanse is designed to be a complete colon cleansing program. First, the natural laxatives (cascara sagrada, cape aloe and senna) and flaxseed oil work to break loose excess buildup on the walls of the colon. Second, psyllium fiber works to push this waste through the intestine toward elimination. Fennel seed in the formula helps relieve intestinal cramping and gas. Finally, African bird pepper helps soothe indigestion and reduce any inflammation in the colon. Once the colon has been swept clean, normal function is restored.