Is It Okay To Use A B12 Injection With Insulin Syringes? Optimal B12 Injection Sites for Maximum Absorption and Benefits Your Health Magazine B12 vitamin Store A Retired RN About Vitamin B12 Injections 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