where do i inject b12 shots Vitamin C and Injection Techniques Best Vitamin B12 Injection Sites:

Here's how the most common options compare

Its our preferred way to inject B12, especially if you self-inject, and againtheres no muscle pain after B12 shots done this way

Reconstitution Math: 5mg Vial Add 2.5mL of BAC water to a 5mg (5,000mcg) vial: 5,000mcg 2.5mL = 2,000mcg per mL On a standard U-100 insulin syringe (100 units = 1mL): 300mcg dose = 0.15mL = 15 units 250mcg dose = 0.125mL = 12.5 units 500mcg dose = 0.25mL = 25 units 1,000mcg dose = 0.5mL = 50 units Reconstitution Math: 2mg Vial Add 2mL of BAC water to a 2mg (2,000mcg) vial: 2,000mcg 2mL = 1,000mcg per mL On a U-100 insulin syringe: 300mcg dose = 0.3mL = 30 units 250mcg dose = 0.25mL = 25 units 200mcg dose = 0.2mL = 20 units Step-by-Step Reconstitution Process Gather and prep Wash hands thoroughly

Utermann G, Hees M, Steinmetz A

This is rare, so you have little to worry about