I am not criticizing chelation. I am criticizing chelation without previously measuring whether or not you are poisoned.
If I understand correctly, both DMPS and DMSA are unable to cross the blood-brain barrier.
None of these chemicals can therefore reach the brain, which is where most of the mercury hides itself (which is, by the way, still an unproven statement because you still haven’t provided a source).
This is my current knowledge. If you can enhance my limited knowledge, please do so.