Liv52 and for a colon cleanse I would recommend going to swansonvitamins.com and looking at some of their...specifically the all-natural 2 week program. Both have worked well for me and have blood tests to prove it on the Liv52.
Best colon cleanse around hands down is fiberblend aim companies.com. The stuff is unreal. I lost 10 pounds in two weeks of shit I guess I coudn't digest.