BPC 157: A Deeper Dive BPC 157, or Body Protection Compound 157, is a synthetic peptide derived from a protein found in gastric juices. Known for its regenerative properties, it has attracted attention for The Peptide Craze Ground Truths People are turning themselves into lab rats': the injectable peptides craze sweeping the US Well actually The Guardian Surgeon WARNING: BPC 157 & TB 500 Injections Zero Human Data, 4 Failure Modes How BPC 157 and 'peptide stacks' are driving wellness culture