I think I have never tried methylcobalamin. No, really, was on the verge these years but for some reason did not. Cannot say why, its dirt cheap. I know folks here are updated about what brands do work and which are gunk. The supplement industry sells a lot of crap, you need to be well researched, I know this very well. I tried to search a bit but the threads I saw are old. Apparently the Enzymathic Therapy one is the best according to those though. Can someone help me out with this vitaminic conundrum? Sorry if this was asked recently.