US$ 20.51
b12 injections vs oral liquid Efficacy of different routes of vitamin supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis Vitamin B12 Supplements and Injections
Description
6 Infante, M., Leoni, M., Caprio, M

Once in the blood, free B12 binds to two proteins: transcobalmin, forming holo-transcobalamin (holoTC), and haptocorrin to form holo-haptocorrin (holoHC)

Not sure how long it will last

But some pets, especially those with gastrointestinal disease, may not be able to absorb B12 effectively
