BPC 157 & TB 500: What You Need to Know BPC 157: Experimental Peptide Creates Risk for Athletes BPC 157 & The Gut Brain Axis: A Practitioner's Definitive Review of the Evidence 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 BPC 157: What the Research Says About Healing and Recovery Yoo Direct Health