Peptide BPC 157 Does It Work? Breaking Down the Evidence and the Hype 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. Heard about BPC 157 in health and wellness products? Think it's a "miracle" peptide? Think again. Claims about BPC 157 are based on lab or animal studies, NOT human clinical studies. BPC 157 & The Gut Brain Axis: A Practitioner's Definitive Review of the Evidence BPC 157 has already hit the mainstream, but should it hit your bloodstream?