B12 vitamin Store Intramuscular vs Subcutaneous Injections for vitamin B12 supplements. Complejo B super Tornel 10ml Horse & Camel Supplies HYDROXOCOBALAMIN INJ, USP, 1000MCG ML, MDV, 30ML NDC 00591288830 NON RETURNABLE Merit Pharmaceutical Vitamin B Complex Injection 100mg mL, 30mL MDV 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