are b12 injections given im or subq Shots at Home: How, Where & How Often to Inject Yourself Sublingual B12 vs. B12 Injections:
Description
Can You Take B12 Vitamins While Pregnant

doi: 10.2337/diabetes.50.2.376

CityHealth San Leandro also offers B12 vitamin injections a quick walk-in treatment for energy, fatigue, and B12 deficiency
Before inclusion, all participants gave written informed consent

I think for return customers we should get a discount
