Ive never had a colonic, but have heard good things about them.
For the record slippery elm CAN be used for elimination purposes, its healing properties are many! Heres some general info.
Slippery Elm contains Bioflavonoids, Calcium, Mucliage, Starch, Tannins and Vitamin E. Containing HIGH amounts of Mucilage and Polysaccharides, Slippery Elm eases digestion and works with the body to draw out impurities and toxins assisting with the healing of ALL body parts.
Slippery Elm is SOOTHING to irritated tissues and has been used in Poultices for its ability to enourage healing in wounds.
It's coating action SOOTHES the irritated tissues of the Intestines, Colon, Urinary Tract and Stomach Ulcers.
It is also benefical in alleviating inflammation caused by Arthritis and soothing Sore Throats.
It nourishes the Adrenal Glands, Gastrointestinal Tract, and Respiratory System. It helps the body expel EXCESS Mucus.