Is the bright red color of B12 injections natural? 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 Hydroxocobalamin acetate ampoules, vitamin B12a. Red coloured solution for injection in the treatment for vitamin B12 deficiency. Accord Healthcare Stock Photo Alamy Everywhere you turn nowadays, people are harping on about B12 injections. It's obvious why, though: they are especially good in the autumn winter months when many of us look and feel a bit Vitamin B12 Shots for Ultimate Rejuvenation in Catonsville MD 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