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: Tendon Repair and More The Human Lab Rats Injecting Themselves with Peptides Office for Science and Society McGill University I spent 4 months reporting on the peptide BPC 157 and its unlikely journey from a research lab in post communist Croatia to today's MAHA movement. Ask me anything. : r IAmA I have taken peptides and hormones (BPC 157, TB500, Ipamorelin, Mod GRF 1 29, TRT, HGH, Anavar) for years in a personal attempt to help me with EDS. AMA : r eds