FDA Puts BPC 157, TB 500, and 5 Other Peptides Under the Microscope: What Prescribers Need to Know About the 503A Review Lengea RFK Jr.'s peptide push could unleash risky drugs STAT First Opinion Peptide BPC 157 Does It Work? Breaking Down the Evidence and the Hype 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, Healing Ankle Injuries: PRP vs BPC 157 & Regenerative Medicine