I really like the Life Force colon cleanse as found at www. EZColonCleanse. com
I've personally used it myself and so I can truly recommend it - highly! The reason I like it is because it is all-natural (no synthetics) and is a complete 30-day, 3-formula program. It doesn't do a half-baked cleanse like many that are available that last only 2 weeks and contain laxative-type ingredients. It completely cleanses, scrapes, breaks-down and removes all of that built-up waste material and sludge trapped in your intestines and causing all sorts of horrid symptoms. This colon cleanse program does NOT have a laxative effect so you will NOT be running around in a panic looking for the nearest restroom.
In fact I wrote a blog about it!