NEW TREATMENT ALERT A vitamin B12 injection helps treat or prevent deficiency by delivering the vitamin directly into the bloodstream. It's often used for people with absorption issues and is usually safe Vitamin B12 Injections B12 Injections Light Therapy Lounge Ever wonder why B12 shots are red? Here's the scoop! , B12 injections naturally have a deep red color due to the presence of the cobalt corrin complex, a key component of its molecular structure. What Color Is Tirzepatide with B12? Compounded vs FDA Approved Fella Health