That 1% difference in peptide purity? It's not just a number on a spec sheet. When you're running sensitive assays or dose response studies, even trace impurities can throw off your results. We're BPC 157 is part of a growing list of compounds called peptides gaining interest in fitness, wellness and anti ageing circles. The buzz comes from their supposed potential to help you build muscle, Peptide Therapy Regenerative Treatments at Blum Health BPC 157 has already hit the mainstream, but should it hit your bloodstream?