Could someone please tell me, what kind of vitamin B12 and how much
of it should I take? This thread is a long one, and I (literally) don't have the nerves to go through it all now, though my question might have been answered there.

Right now, I have 2 kinds of pills on my desk:

1. neurobion , which is 100 mg B1 + 200 mg B6 + 200 mg B12

2. megasorb vitamin B complex, which is a lot of things, including 50 mg vitamin B 12 (as cyanocobalamin, whatever that means), and 400 mg folic acid.

Hard choice, I have no idea which one is better, and how much of it I can safely take.

I could also maybe buy just B12 in a standalone form, they probably do sell it? Would that be better?

Cheers