BPC 157: Experimental Peptide Creates Risk for Athletes BPC 157: Not a steroid, not a mystery drug, a healing peptide. You've probably heard the hype, so here's the real science: 1 Speeds up tissue repair Helps muscles, tendons, and joints BPC 157 Precision Performance Physical Therapy TB 500 and BPC 157 work through different pathways, but together they create a powerful recovery combo , BPC helps reduce inflammation, TB 500 supports tissue repair, and adding a GH secretagogue