I used 15-25mg DMSA/4hrs over long weekend in the early months of detox.
In the first 1.75 yrs I did not use more then 25mg DMSA + 16mg ALA and still got life-changing gains-- 8% improvement in bone density, normalization of kidney--eGFR #s, improvements in food sensitivities , social anxiety, mood, etc.
I took generous amounts of vit c, e, Mg, Zn, Se, other supplements for mood, adrenals, etc.