US$ 25.92
b12 cyanocobalamin injection vial for cats Cyanocob 250 100ml (Cyanocobalamin Vitamin Veterinary)– Top Brand Vitamin B12 is not made by the body and is provided either by diet or supplementation B12 for cats - Feline
Description
FDA granted it GRAS (Generally Recognized As Safe) status in 2014 as a food ingredient

Apparently, vitamin B12 is considered non-toxic, water soluble and quickly metabolized

Lai L, Leone TC, Zechner C, Schaeffer PJ, Kelly SM, Flanagan DP, Medeiros DM, Kovacs A, Kelly DP
The catch and this is where honesty matters on a YMYL page is that can survive the gut in principle is not the same as has a proven, quantified oral bioavailability in humans. No such human number exists for this molecule
