Early evidence suggests BPC 157 repairs tissue rather than just dulling symptoms. To read more, tap the link in bio. What do we know about 'research only' peptides? Q&A with expert Stuart Phillips McMaster News BPC 157 & TB 500 What the Science Says About These Two Miraculous Peptides Kindle edition by Smiley, Tony. Health, Fitness & Dieting Kindle eBooks @ Amazon.com. 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