BPC-157 was identified as a fragment of a larger protein believed to play a significant role in maintaining the integrity of the gastrointestinal (GI) tract
You should get B12 shots weekly to monthly for maintenance and IV infusions monthly to quarterly for broader wellness support, though frequency depends on deficiency severity, health goals, and your providers recommendation
None of this makes the mechanism uninteresting
How do I know if my BPC-157 capsules or powder is real
J Bacteriol 179:64996503 Yajima H, Inoue H, Oikawa A, Yasui A (1991) Cloning and functional characterization of a eukaryotic DNA photolyase gene from Neurospora crassa
If simple measures do not provide relief within two to three weeks, further medical review is appropriate to exclude other causes and consider alternative supplementation routes