The look of surprise never gets old when we do B12 injections and it doesnt hurt , B12 is a great vitamin to increase energy, reduce fatigue, improve nerve function, and so much more! Thank you to 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 Vitamin B12 Injection Side Effects and Safety Not all shots are the same here's a guide Injections are a fast, effective way to deliver medications, nutrients, and vaccines directly into the bodybut not all injections are the B12 Injections for Energy: Benefits and How It Works AZ IV Medics