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 BPC 157: Experimental Peptide Creates Risk for Athletes BPC 157 Research Guide Canada Dosing, Mechanism & Sourcing Regulatory Alert: FDA's April 2026 Update on BPC 157 and GHK Cu Holt Law Protective effects of pentadecapeptide BPC 157 on gastric ulcer in rats BPC 157 erectile dysfunction study: What the current evidence actually shows