can you give a b12 injection in the arm Vitamin C and Techniques Choosing the Right Needle and
Description
By inhibiting NNMT, 5-Amino-1MQ may spare nicotinamide for NAD+ synthesis, thereby activating SIRT1 (Sirtuin 1) pathways associated with mitochondrial biogenesis and fat oxidation [3]

Additional oral or sublingual B12 supplementation is generally safe alongside the blend, though likely unnecessary for most patients since the injection provides direct B12 delivery

Salatzki, J

Dermatological reactions represent the most consistently documented side effect of excessive B12 intake

& Febbraio, M