Did you know there was more than 1 form of Vitamin B12? Hydroxycobalamin Created naturally by bacteria fermentation and is the main type found in food. Easy conversion into methyl B12 with the What are B12 Injections & Why Might You Need One? Vitamin B12 is essential for: Energy production Brain function Healthy red blood cells Nerve health Quality Are Vitamin B12 Shots Right for You? If you have a low vitamin B12 level, injections can go a long way toward improving your health and well being. But if your B12 level is normal, don't fall for claims that How Often Should I Get B12 Shots? A Guide to Your Schedule How Long Does It Take Vitamin B12 Injections to Work?