If you are constantly tired, hungry, and unmotivated, the answer may not be another energy drink but B12 injections under medical guidance. At Advanced Wellness & Rejuvenation, B12 injections are used to B 6 B 12 & Lipo Injections SI Medical Weight Loss Vitamin B12 Injection at Orange County Best Medical Weight Loss Clinics Feeling worse after B12 Injection: Answering concerns. La Vie Med Spa How Vitamin B12 Injections Can Support Weight Loss and Management Can Vitamin B Help You Lose Weight?