I have a similar question I have NP and I began taking the methyl b12 1000 but just order the 5000 , I'm also taking benfotaimine 600gm a day and today I began taking complex b with folic acid and vitamin c(all in one by natures best) I was taking centrum womens but stopped. I have read most comments but im still unsure if I should take and how much I should take of zinc , biotin, coq10 , rlipoic , magnesium , fish oil, acetyl l carnitine and vitamin d I also read that acetyl l should be taken with ALA but I read rlipoic is better than Ala .I would really like some help since the numbness and tingling returned to my foot after a year and now I began feeling needles in my hands !! Thanks in advance