PC157 is a natural, non-toxic gastric pentadecapeptide with profound cytoprotective activity, and has been used in trials for ulcerative colitis and multiple sclerosis. BPC157 is stable in human gastric fluid for over 24 hours, suggesting good oral bioavailability and beneficial effects throughout the gastrointestinal tract. Stable BPC157 is believed to mediate Robert’s cytoprotection, maintaining the integrity of the gastrointestinal mucosa.