What Is BPC 157? A Medical Clinic's Guide to the Body Protective Peptide, Its Uses, and What It Actually Does Perfect B Does the BPC 157 Peptide Work? Regenexx at New Regeneration Orthopedics BPC 157 & TB 500: What You Need to Know Carpal Tunnel Syndrome for the Pain Boards and Your Practice Dupuytren's contracture is caused by a fibroproliferative disease in which fibrous cords form in the hand, pulling one or more fingers into a bent position and interfering with hand function.