Nothing compares to pure water. What do you do with cooking pots that have black burned food stuck on the bottom? You soak it in water, right? Water is the best universal solvent. Most people's digestive system has that same black shiny crud baked onto their intestinal walls. When you eat crappy food, your body creates mucus to protect itself from that crap. Over years this mucus becomes hard crusty plaque, which prevents nutrition from getting into your system, making you run down, tired and sick. Pushing fiber through there will push the new stuff out, but to really dissolve that old hard stuff and thick blockages, you need water. If you absolutely refuse to do enemas or colonics, then the colon formula is your second choice.