aod9604 uses 5mg AOD9604 - Research Peptide -

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

[DOI] [PMC free article] [PubMed] [Google Scholar] 151.Mottillo EP, Balasubramanian P, Lee YH, Weng C, Kershaw EE, Granneman JG

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)

Vitamin B12 Injection is often supplied as cyanocobalamin injection 1000 mcg/mL, also written as 1,000 mcg per mL

They are susceptible to degradation pathways that small molecules simply do not face, including deamidation, oxidation, aggregation, and hydrolysis