B12 Injections in Helena Advanced Practice Dermatology 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 What Color is Vitamin B12 Injection? Dr. Scott Denny B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics Ever wonder why B12 shots are red? Here's the scoop! B12 injections naturally have a deep red color due to the presence of the cobalt corrin complex, a key component of