bpc 157 oral bioavailability pharmacokinetics study Frontiers Multifunctionality and Possible Medical Application
Description

Customizable Formulations : Vitamin injections can be customized to meet individual needs by adjusting the types and concentrations of vitamins, minerals, and other nutrients

Checking your B12 level and possibly incorporating B12 injections might be your naturopaths suggested treatment route
Many people are also genetically predisposed to having impaired B12 absorption

And being injected my body takes it up so much better than an oral form
