Dr. TLDR: BPC 157 has not been proven to cause cancer. But it has also not been proven safe in people with active cancer, recent cancer, premalignant conditions, suspicious lesions, or high What Is BPC 157? A Medical Clinic's Guide to the Body Protective Peptide, Its Uses, and What It Actually Does Perfect B BPC 157 & The Gut Brain Axis: A Practitioner's Definitive Review of the Evidence BPC 157: Interesting Biology, Limited Clinical Proof