What is BPC 157 and why are people talking about it? BPC 157 is a synthetic peptide derived from a protein found in gastric juice. Most of the data we have comes from animal Stable Gastric Pentadecapeptide BPC 157 as a Therapy and Safety Key: A Special Beneficial Pleiotropic Effect Controlling and Modulating Angiogenesis and the NO System What are the considerations and potential risks for a patient with a history of cancer, pregnancy, or breastfeeding considering BPC157 (Body Protection Compound 157) peptide therapy for muscle and tendon injuries or Peptide BPC 157 Does It Work? Breaking Down the Evidence and the Hype