Also, there is another aspect to this. You can take a challenge test, and end up showing little to almost no level of mercury. Once this occurs, not only does the medical professional then decide you do not have mercury, but you may go through life not realising that you could have retention toxicity. Meaning, the sickest patients hold onto mercury the tightest and do not eliminate it properly.

Levels of mercury only show up when a person is either being exposed at the time and/or their body is eliminating it. If you ahve amalgams and have obvious symptoms of mercury, yet show little to no level, you can be in bigger trouble than someone who shows they are able to eliminate it.

So be aware of that, because it's a pretty bad case senario. Hair tests can be helpful, but not so much in looking at the level of mercury (which can be notoriously misleading and once again show little to almost no level), but instead looking at the minerals and seeing whether there is a pattern going on. Mercury can derange certain minerals and someone well versed in mercury is often able to spot a tail tale sign of it by looking at the mineral levels on your hair test to see if mercury is indeed at work.

Other than that, I'd just be wary of the challenge tests out there. You don't know what you might release and what yourbody will be able to stand and whether it may do any damage also. not all damage can be rectified with this toxicity and using unnecessary and risky challange tests just increases the chances of greater damage in the process. Depending of course how ill/poisoned you are.