What Is BPC 157? A Medical Clinic's Guide to the Body Protective Peptide, Its Uses, and What It Actually Does Perfect B Peptide BPC 157 Does It Work? Breaking Down the Evidence and the Hype Is BPC 157 Banned? Oral vs. Injectable Forms Explained Peptide side effects no one talks about BPC 157 headaches. TB 500 fatigue. CJC Ipamorelin water retention. Most people quit. But 90% of the time it's the protocol, not the peptide.