Personally for myself I started Vitamin B12 injections, for the first time my B12 is in a good place. I have had a bit less fatigue and more energy, but that’s just been my personal experience so for. My neurologist conveyed to me too much vitamin B6 can cause more pain, haven’t looked into this too much yet.

Vitamin brand wise I have personally liked: pure capsulation encapsulation, Brain MD by Doctor Amen, I believe vitamin absorption has to due with gut health, not sure I have to look more into that.