bpc-157 safety human data case report BPC-157: What the Science Actually Says The Stable Gastric Pentadecapeptide BPC
Description
People who suffer from depression also may be found to be deficient in Vitamin B12 in their system

Cell 10 , 417426 (2002)
Your body uses amino acids to synthesize all kinds of peptide hormones as well

Combine that with three other properties it's sterile, it's pH-neutral and gentle on most peptides, and it's inexpensive and it becomes the obvious default diluent across the field