These two peptides are often discussed together but they are studied for different biological roles. BPC 157 is commonly mentioned in research related to localized tissue repair and gut lining signaling pathways. TB 500 BPC 157 10mg Peptide for Recovery Pepsynth Labs This photo was taken by my orthopedic surgeon just one week after my left shoulder replacement on December 16, 2013. Before surgery, I mentioned I was researching two experimental peptidesTB 500 and BPC 157for What Is BPC 157? A Medical Clinic's Guide to the Body Protective Peptide, Its Uses, and What It Actually Does Perfect B