why do you need to have b12 injections a Prescription for Injections? The Truth About B12 Injections:

DSIP Cognitive Blend Selank/DSIP Oxytocin Fertility Support Peptides that support fertility by regulating reproductive hormones, enhancing ovarian and testicular function, and promoting reproductive health

Cattle and Horses..........................0.4 to 0.7 mL Swine and Sheep....................................0.2 mL Dogs............................................0.1 to 0.2 mL Cats......................................................0.1 mL Each mL of sterile aqueous solution contains: Cyanocobalamin (B12)

That being said, B12 injections may be administered in office 1 to 2 times per week as well as at home

L-Carnitine L-Tartrate Fatty-acid transport (no internal link in map)