aod9604 uses 5mg AOD 9604: The Ultimate Guide

Yes - the reasons for stinging are usually either swabbed area not dry, a drop of B12 at the tip of the needle (flick syringe and wait a moment) or B12 ampoule not warmed up just before injecting (especially if using fridge)

NMT nicotinamide N-methyltransferase Nicotinamide N-methyltransferase is a key enzyme located in the cytosolic milieu that catalyzes the transfer of methyl group from the co-factor S-(5-Adenosyl)-L-methionine (SAM) to substrates such as nicotinamide (NCA), pyridine, and related analogs, such as quinoline, isoquinoline, and the aliphatic amine 1,2,3,4 tetrahydroisoquinoline

How Long Does a B12 Vitamin Injection Last

They are strictly intended for laboratory research and in vitro experimentation

Remember : Never start taking supplements without consulting a healthcare provider to discuss the mode, dosage, and duration of therapy