B12 Injection Frequency: How Often Should You Get a B12 Shot? Liv Hospital Feeling constantly tired, low on energy or just not yourself?, Sometimes its not your routine its what your body is missing., Vitamin D and B12 play a key role in:, Energy levels, Mood and What You Need to Know About Vitamin B12 Duane NP B12 Injections Explained by a Midwife B12 Injections: Who Should Get Them and How Long Do They Last? 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