COL-Clear is a well-known herbal colon cleanser and bowel support combination, based on a formula by master herbalist, Dr. John R. Christopher. The sugar beet fibre in this formula, in particular, contributes to an increase in faecal bulk in two ways: the insoluble components of the fibre increase faecal bulk by absorbing water in the large intestine, while the soluble components are fermented by bacteria in the large intestine leading to an increase in bacterial mass. As such, this source of fibre may have a beneficial physiological effect for people who want to improve or maintain normal bowel function. The ingredients help to cleanse the intestinal tract, soften the stool, stimulate the liver and improve peristalsis. This, in turn, helps to produce bowel movements and expel layers of old encrusted mucus and faecal matter that may have accumulated over time. They also act to gently cleanse, stimulate and tone the bowel wall, supporting a move towards unassisted bowel movements.