Stable gastric pentadecapeptide BPC-157 is is a synthetic peptide chain. A peptide is simply a sequence of amino acids. BCP specifically is composed of 15 amino acids derived from a protective protein found in the stomach. BPC, short for 'body protective compound', is already found in human gastric juices in small amounts to heal the gut, but can be taken supplementally to benefit anywhere in the body. BPC-157 is a cytoprotective compound, meaning its actions include aiding the healing process including remodeling and protective effects. It can also protect against oxidative stress.