Colon cleansing using the colonic irrigation method is very different from a traditional enema.
In particular, liquid goes higher into the colon, well up into the transverse colon and sometimes even into the ascending colon.
A great deal of more water is used than in an enema, and retention is not so much a factor as is irrigation.
There are several methods for the colon cleanses but they generally use a low pressure water delivery source to introduce the water into the colon [Colon Hydrotherapy]. Usually the pressure comes from either gravity or a mechanical device.
In the best scenario, there is a therapist assisting with the procedure, but there are some home methods available for the individual who wishes to perform colonic irrigation in the privacy of their own home.
Oral products designed and marketed as colon cleansers are available, and some are fairly well known, but they lack the gentleness and the thoroughness of a colon cleansing using water. Their effectiveness can vary from product to product, so you must use caution when using these products.
Critics say that colonic cleansing is generally unnecessary and at times may even be harmful. It is up to each individual to determine whether or not this is an appropriate method for pursuing health. Do be aware that there are certain medical conditions that preclude this type of treatment.