It's the r version of Ala. R-lipoic acid or r-alpha lipoic acid. Ala is made of 2 types r and I believe s. The r is the portion that gets absorbed. The other gets in the way. Find some r only and 600 mg /day. I do 300 2x a day. Plus benfotiamine helps with the nerves. (Same 600mg a day)
But walking, vibration plates, that aggrevates my nerves so it's hard for me to do the big number of steps.