The R form definitely seems more bio-available and protective but I looked at the page and they didn't seem to have any research to back up the negative claims such as the S form counteracts the R form.

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The conclusion would be that (R+) ALA is the only beneficial form, while the more common mixtures are worse (for the longevity & antioxidant effects) than no supplement at all.


Many people have gotten great results using the mixed ALA according to Andy Cutlers chelation protocol, so I would have to say your conclusion is wrong, though it may be proven later that The R+ form is more effective but the S- form could also have benefits that weren't looked at.

Sometimes its confusing because so many claims are made for and against health supplements...and sometimes its just to hype one form but sometimes there is a real difference.