Curious about the vitamin B12 injection site? B12 shots are usually given intramuscularly, commonly in the upper arm (deltoid muscle) or thigh. These injections help boost energy, improve focus, and support red blood cell production. Administered correctly by professionals, B12 injections are safe and effective, ensuring proper absorption compared to oral supplements. They are often r... https://lifestylephysicians.com/b12-injection/