B12 Injection sites + How to use B12 Shots Safely Cobalamin (vitamin B12) and Folate Deficiency Province of British Columbia A vitamin B12 injection is a shot that delivers B12 directly into your muscle, helping your body absorb it quickly (especially if your body struggles to absorb it from food or tablets) B12 Injection sites + How to use B12 Shots Safely What Happens If You Inject B12 Into Fat? PA Relief Vitamin B12 Injections Cardiff Prescription Hydroxocobalamin Sebastian Rose