bpc.157 side effects BPC-157 for athletes and injury treatment: Science, safety, and legal concerns BPC-157 Side Effects: What Research

Originating from vagal neural crest progenitors during embryogenesis, the ENS comprises millions of neurons and glial cells organized into myenteric (Auerbachs) and submucosal (Meissners) plexuses

For gastrointestinal indications, systemic or oral administration is appropriate because the entire gut is the target

This is how Humiston found out about peptides

As I said before PA is still thought to be the primary culprit here, other causes of B12 deficiency such as malabsorption caused by metformin, H2 blockers, PPIs, parasites, etc

After 8 weeks, you see minimal improvement and conclude the peptide does not work

They are simply not there yet