Lower Bowel Formula: Barberry Bark, Cascara Sagrada Bark, Cayenne, Ginger, Lobelia herb and or seeds, Red Raspberry Leaves, Turkey Rhubarb Root, Fennel, Golden Seal Root sage: In most cases, improper diet has caused the peristaltic muscles of most people to quit working, and it will take six to nine months with the aid of the lower bowel tonics for the average individual to clean out the fecal matter and to rebuild the bowel structure sufficiently to have the peristaltic muscles work entirely on their own.