Theoretically a few things can get rid of blood Hg but all are sulfur based, MSM, NAC, DMSA etc.

Only ALA will get it from organs and brain, but it will also work for blood Hg...however there is no controlling this so most start with DMSA until blood Hg is lower before adding ALA.

The issue with the other sulfurs is that they will not bind completely as DMSA does and loose the Hg partially out of the body in possibly worse areas...

GSH will do it but if toxic this is like asking your immune system to deal with a BioW Virus...no fun...will take forever...plus you want GSH in place to protect yourself against a million other things not Hg.

See Andy on what is and isn't a REAL chelator and why...

DMSA will reduce blood levels, never take ALA with high blood levels(unless you already dropped the blood levels so low that the organs are dumping and the levels will rise again). Never increase glutathione levels. Don't take NAC it will possibly make you sick. Follow Cutler's protocol strictly and you'll get better.