Multifunctionality and Possible Medical Application of the BPC 157 PeptideLiterature and Patent Review What Is BPC 157? A Medical Clinic's Guide to the Body Protective Peptide, Its Uses, and What It Actually Does Perfect B All the hype about peptides But what are they actuallyand have they really been tested in humans for muscle building or tendon regeneration? We took a deep dive into the literature 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. BPC 157: Miracle Healing Peptide or Hidden Danger?