can i inject b12 myself How to Give a Injection: Step-By-Step Instructions B12 SELF-INJECTION GUIDE | IM
Description
The FDA-designated label for cyanocobalamin states that it can be given either intramuscularly or subcutaneously

In skeletal muscle, promotes stem cell proliferation, regeneration, and muscle fiber hypertrophy post-injury 1

Put on a new needle and remove the cap
This leaves a stable, dry compound that is suitable for research applications