How to self inject intramuscular vitamin B12 Overview Guy's and St Thomas' NHS Foundation Trust Instruction Guide for Intramuscular (IM) Self injection of B12 Methylcobalamin 1mg 5mg Subcutaneous injection technique HOW TO GIVE A SUBCUTANEOUS INJECTION Make sure the skin clean, dry, and without wounds Injection sites Position the syringe dominant hand Gather mound of skin between hngers Insert How to Give a Subcutaneous Injection Video & Image Optimal B12 Injection Sites for Maximum Absorption and Benefits Your Health Magazine How to Give a B12 Injection: Step By Step Instructions