We will cover the optimal choices for every common vial size in the sections below
B12 Shot Home Kit Includes: 30 Day supply of B12 (methylcobalamin) Shots (10 doses) Syringes Alcohol Pads Physician Access Procedure Intramuscular (IM) Injection, self-administered in frontal thigh area
Neither is inherently better. Using 2mL of water creates a more dilute solution, which can make it physically easier to measure out precise microgram doses, as youll be drawing a larger volume into the syringe
Orthopedic Reviews 17(1):12313605
According to the National Institutes of Health, even at high levels, B12 isnt toxic and is generally considered safe because your body doesnt store excess amounts
Any references to tissue, vascular, or gastrointestinal models are provided only for research context and do not imply therapeutic or clinical use