Is BPC 157 Immune System Support Really Effective? LIVV Natural BPC 157 and TB 500: Injury Healing Peptides Jonathan L. Glashow posted on the topic LinkedIn 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: Interesting Biology, Limited Clinical Proof, BPC 157 is biologically interesting, but its not clinically proven. Most evidence is preclinical, and human data is still small and preliminary. 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