If you are unsure whether B12 injections are right for you in the first place, that starts with your GP and a blood test, as set out in the NHS treatment pathway
Neurochemical research, 32(4-5), 723-727
Oral supplements are available in various forms in the market, for example: tablets, capsules, and sublingual (under the tongue) formulations
Detection of inflammatory biomarkers in saliva and urine: Potential in diagnosis, prevention, and treatment for chronic diseases
Long-acting formulations extending beyond once-weekly dosing could improve adherence further
This multi-targeted approach may explain why users report benefits across diverse injury types and body regions