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 Vitamin B Complex: Package Insert Prescribing Information B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics Vitamin B12 Injections in Ormskirk Olyvine Aesthetics At Home Vitamin B12 4 Week Injection Package MUST BE A FLORIDA RESID CardioMender, MD