Binding copper (Cu2+) to the tripeptide GHK forms a copper complex of the copper peptide class, which is regarded as an endogenous signaling module influencing cellular programs for remodeling the extracellular matrix and regulation of inflammatory mediators via gene expression and receptor-mediated pathways (summarized in Wikipedia: GHK-Cu and scientific reviews)
Vitamin B12 for dogs, also known as cobalamin, cyanocobalamin, and methylcobalamin, can be safely administered to your dog as directed by your veterinarian
Finding the right dosage is key to getting better
Methylcobalamin is the active form of Vitamin B12 and supports nerve cell repair, nerve regeneration, red blood cell formation, and myelin sheath maintenance
But if your body isnt good at that (and lots of people arent), you never really get the full benefit