US$ 21.16
bpc 157 human clinical trial gastric ulcer Columbia Undergraduate Science Journal Frontiers | Stable Gastric Pentadecapeptide
Description
Side-effect management: Nausea and GI issues are minimal at lower doses

303 , H1067-1075

The CAS number for BPC-157 is 137525-51-0

Also - all the guidelines state that once B12 therapy has commenced, B12 serum levels are meaningless in terms of evaluating clinical efficacy (as you say, they'll always be high because of the injections)