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 B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics Where Does B12 Injection Go TikTok How to Give a Vitamin B12 Injection in the Arm Easy Guide YouTube Ivy Grove Surgery : Self administration of B12 injection