BPC 157 is one of the peptides that has been getting a lot of attention recently. It is a synthetic peptide derived from a protein found in human gastric juice. In experimental research, Think twice before injecting peptides bought online: unauthorized products can seriously harm you Canada.ca The U.S. Food and Drug Administration is moving toward allowing compounding pharmacies to produce more than a dozen injectable peptides that were banned because of potentially significant safety risks, the New York Why Are People Injecting Themselves with Peptides? The New Yorker