Melatonin is a hormone, and important too, and there are probably more connections than anyone knows.

The dose is the important thing. You may or may not get a bit more with sublingual form.

Yes, cyanocobalamin can provide for most people the B12 they need, which in turn may allow repairs to be made. But methylcobalamin is better at producing results, allowing an amazing degree of nerve growth in some cases. If it is available, it is the best choice.

Any of us who makes repairs is fortunate. There are some who do not. I'm glad your memory results came relatively early. Often mental (and motor damage) repairs come much later if at all.

rose