B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics How to Self Inject Vitamin B12 at Home The Sanctuary Wellness Institute Frontiers Appropriate intradeltoid muscle needle penetration depth in vaccine administration: an MRI study in Thailand How to Give Yourself a B12 Injection ThinWorks Vitamin B12 Energy & Wellness Support at Home Calibrate Hydration 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