All interesting reading and I had no idea of the difference. I've been taking the Alpha Lipoic for maybe 4 months, although only 400 mg a day since it was bothering my stomach. I'll do a search for the R form and order some.

I should note that I haven't felt a bit of difference since going on the Alpha and the rest of the regimen - L-Carnitine (L Tartate) 500 mg, B12 (methylcobalamin) 2500 mcg, B6, D3, Magnesium Malate and CoQ-10. I stopped the fish oil because of the scary stories I've been reading about prostate issues.

Guess all this will take time!