I got my clay from the source linked below. I got the all purpose (general) detox and I am using it to remove mercury from my system. They send you instructions with it. I do the minimum amount for those that are very toxic, 1 cup in the bath at 102 degrees for 10 minutes a week apart. I have done two so far.
I do notice it makes a difference with my anger, hopefully I will notice other improvements soon.
Magnetic clay baths