Vitamin B12 injections are performed by injecting different forms of vitamin B12, including hydroxocobalamin or cyanocobalamin, intramuscularly
Taking too much B12 can cause skin rash, diarrhea, or stomach problems
Studies show that inhibiting nicotinamide Nmethyltransferase (NNMT) enhances metabolic health by reducing adipose tissue accumulation, improving insulin sensitivity, and promoting better energy utilization
The injectable form ensures the supplement reaches the body effectively when oral options are not enough, helping improve energy levels, appetite, and overall wellbeing
These formulations typically include methionine, inositol, choline, and cyanocobalamin (vitamin B12), often abbreviated as MIC-B12
However, limitations exist in the form of in vivo instability, the reliance on carriers that are biocompatible and robust and limited sites of application (local and direct) (Park et al