A little bit lazy to post links but.. if you search up acetyl-l-carnitine or ALC or ALCAR and regeneration, you'll find a wealth of studies that showed that ALC actually reverses nerve damage over a year. And this was for all sorts of neuropathies, diabetic, HIV, cancer, trauma. So I think ALC can work for anyone with PN. So even though it may be quite expensive, around 50 dollars a month, I think it's well worth it. I think I remember reading that it's best for people with small fiber neuropathy (painful neuropathies). I guess I can post a few upon request...