BPC 157 Explained: Benefits, Safety & Oral vs Injectable Options 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 Peptides seem to be everywhere right now. We've been looking into a few, like copper peptides, BPC 157, and TB500, mostly from a recovery and skin support standpoint. Still learning, still observing, and Peptide BPC 157 Does It Work? Breaking Down the Evidence and the Hype