B12 injections training course 300 One day course perscriber set up for prescriptions with our nurse insurance referral learning how to take blood pressures included each injection would cost you around Wisconsin reaffirms support of hepatitis B vaccine for newborns, defying federal advisers WPR Still injecting in the same spot every time? Read this. Where you inject your peptides can actually affect absorption, comfort, and results. Quick guide: Abdomen: fastest absorption Upper arms Vitamin B12 Shots: Do They Actually Work? Business Insider