Peptides like BPC 157 are everywhere on social media right now. They are most commonly promoted for injury and tendon healing and are often paired with other peptides such as TB 500. BPC 157: Miracle Healing Peptide or Hidden Danger? BPC 157 has generated significant research attention, but most of it is happening in animal models. Here's what 47 trials and 100+ studies actually reveal: an enormous gap between preclinical promise and human Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance[v3] Preprints.org