Not all shots are the same here's a guide Injections are a fast, effective way to deliver medications, nutrients, and vaccines directly into the bodybut not all injections are the B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics Feeling worse after B12 Injection: Answering concerns. La Vie Med Spa Risks of Wrong Intramuscular Injections and Prevention Measures 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 Top 5 Common Mistakes to Avoid When Injecting Vitamin B12