BPC 157: Experimental Peptide Creates Risk for Athletes BPC 157 No Proof Required! Office for Science and Society McGill University Peptide Therapy 101: Can BPC 157 & Thymosin Beta 4 Accelerate Ortho Recovery? BPC 157 isn't a gut ingredient. It isn't a joint ingredient. It's a tissue repair peptide. It supports cellular communication pathways involved in repair, resilience, and inflammatory balance, exactly what stressed guts BPC 157 has already hit the mainstream, but should it hit your bloodstream?