BPC 157 for athletes and injury treatment: Science, safety, and legal concerns BPC 157 and TB 500: Injury Healing Peptides Jonathan L. Glashow posted on the topic LinkedIn Too often, BPC 157 gets boxed into a single use: injury recovery. Gabriel Alizaidy, MD, MS 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 Peptide Therapy for Pain Management and Healing Core Medical & Wellness