Looking for an inexpensive chelator? Try using over-the-counter alpha lipoic acid. Although marketed as an anti-oxidant, more and more people are finding it useful as a heavy metal chelator. At this point, it might be the only chelator to remove mercury from the brain... it works VERY well over at my house! I take 25 mgs every 3 hours for 72 hours.. then off for 4 days before starting all over again. Take a look at the work and experience of Andy Cutler.