Injection Techniques Step by Step Guide 1. Intramuscular Injection (IM) 90 Angle Needle Position: Perpendicular to the skin (90 angle) Target Site: Muscle layer Common Sites: Deltoid, Vastus Lateralis, How to Inject B12 with A 25g Thigh TikTok B12 vitamin Store How to Give an Intramuscular Injection of Vitamin B12 Injecting substances can expose individuals that use injection drugs to serious harm, but understanding the difference between safer and more harmful sites can help reduce these potential dangers. Here's a breakdown of Instruction Guide for Intramuscular (IM) Self injection of B12 Methylcobalamin 1mg 5mg