People are turning themselves into lab rats': the injectable peptides craze sweeping the US Well actually The Guardian 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, Peptide BPC 157 Does It Work? Breaking Down the Evidence and the Hype Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance[v3] Preprints.org Frontiers Stable Gastric Pentadecapeptide BPC 157 and Wound Healing Antinociceptive Effect of BPC 157 in the Formalin induced Pain Model