Frontiers The function of natural compounds in important anticancer mechanisms BPC 157 Benefits, Dosage & Before After Results How did BPC 157 become the wellness industry's star peptide? 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 Pentadecapeptide BPC 157 efficiently reduces radiation induced liver injury and lipid accumulation through Kruppel like factor 4 upregulation both in vivo and in vitro ScienceDirect