I am in Asia and found a product called Tribimin which is injectable.

It is B12(cyan) + B1 + B6. I have been taking this instead of the B12. It is helping me more than the B12 alone was. I have since moved to .5ml injected daily. I am going to continue doing this for a while as it is helping me.

I also take a B vitamin by Aleve, and my multi has B vitamins. Plus my Magnesium supplement has B6.

Is it possible to also not absorb B6 or B1 very well orally?
Are there health concerns with daily B6, and B1 injections?