You have to do other cleanses for one to work. Think holistic! Your liver may be clean, but the toxins will autointoxicate you because they can't get out of your system via the intestines/rectum/anal. Why? because you are clogged up there. No joke. Same with the intestinal cleanse...you can be clean there, and things are moving out, but without other cleanses you still will feel ill, sick, diseased because your other organs still are. Do all the cleanses, and you'll feel better.
ps I am going to do a liver flush, but I wonder if it truly works, I bet it does, I just haven't done it yet. I did an intestinal cleanse, and let me tell you, it worked wonders.