B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics B12 Injections for Energy: Benefits and How It Works AZ IV Medics How to Safely Self Inject a B12 Shot Perfect for IV Med Spa Clients! , Steps to give yourself an intramuscular shot:, 1 Prep Your Supplies: If youre drawing up B12 yourself, attach a needle to Buy Vitamin B12 Injection at BiosenseClinic.com a Licensed Pharmacy Biosense Clinic How to Give a B12 Injection: Step By Step Instructions Vitamin B12 shots: Uses, benefits, and side effects