B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics Vitamin B 12 Injection, 5,000 mcg mL, 100 mL at Tractor Supply Co B12 Shots to Revitalize and Inspire Discover at Body Blu Vitamin B12 Injections Near Me Immediate Care of Oklahoma Lets do my first B12 injection together This is something Ive been nervous about for a long time, but today I finally did itand it honestly wasnt bad at all. I used the Union Medico needle guide