Vitamin B12 Injection We Come to You ASAP IVs IV Hydration Experts of San Diego, Phoenix, Scottsdale, San Francisco Vitamin B 12 intramuscular injections are also used therapeutically to help restore energy and combat various symptoms related to such deficiencies. Vitamin B 12 is essential to the development of healthy blood cells, nerve Vitamin B12 Shots: Uses, Intake Levels, and Safety Fun Fact Friday! Ever wondered Why is my B12 injection red? All B12s are cobalamins they have a cobalt atom at the center of a special ring shaped molecule called