The Yerba Prima really works well for me. Clears my mind, helped get rid of a tooth infection. You feel SO much cleaner and even look better.
Big caveat though - drink this with a TON of water. Just make the commitment on the days you're ingesting it to flood yourself with water. I've been having very thick clay like stools recently that have resisted just about every attempt to get regular.
Now I'm drinking lots of hot tea that seems to be helping. Some people say you should take psyllium while using Bentonite, but psyllium has its own issues with constipation and lots of water consumption.
But it's worth it. After taking lots of heavy metal cleanses and oral chelation in the past, this stuff is just so much more powerful. But don't forget the gallons of water.