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 How to Give a B12 Injection: Step By Step Instructions How to self inject intramuscular vitamin B12 Overview Guy's and St Thomas' NHS Foundation Trust It might not be your lifestyle it could be a B12 deficiency. B12 is essential for energy, mood, and overall wellness and when levels are low, your body feels it. Our