BPC 157 Explained: What We Know And What We Dont, BPC 157 (Body Protection Compound 157) is a 15amino acid peptide derived from a protein found in gastric juice. Preclinical research suggests Systemic Benefits of BPC 157: Fat Loss & Workout Recovery Bpc 157 and TB 500 My protocol and results explained! I've talked about this with probably a dozen different guys over the last 4 months so hopefully this helps someone else. #progress # Our #1 selling peptide by a long shot #bpc157