BPC 157: What It Is, What We Know, and Why Its Use for Arthritis Remains Unproven San Diego Orthobiologics Medical Group The Future of Supercharging Healing and Performance with BPC 157 Regenerative Medicine Center Dr. Valerie Donaldson MD Pittsburgh, Pennsylvania PA Peptide Therapy for Pain Management and Healing Core Medical & Wellness 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 Peptides like BPC 157 are everywhere on social media right now. They are most commonly promoted for injury and tendon healing and are often paired with other peptides such as TB 500.