subcutaneous vitamin b12 injection sites Best Site: Administering B12 Shots File:Subcutaneous-injection-sites-274x300-ar.png - Wikimedia Commons

My energy is up and I can tell my endurance and performance during workouts is always better than before I started

None of them has undergone the kind of large-scale trials to establish safety and effectiveness that are required for FDA drug approvals

In the old days the Schillings test helped to solve this question

Thats why at Hair GP we are always happy as part of a medical consultation to run through any tests you may have done privately or via the NHS

Nervous system function: B12 supports the myelin sheath, the protective layer that insulates your nerves and helps signals travel quickly between your brain and body