BPC 157 Arginate Receptor Chem BPC 157 Receptor Chem Most peptides are broken down in the stomach and not absorbed when taken orally, which is why injectable forms are often used. BPC 157 is a unique exception. Because it originates from the gut, its Big FDA review coming this July. Here's what athletes and patients should know about BPC 157, TB 500, and the broader peptide conversation. Always speak with your physician before starting any new protocol. #bpc157 #