People are turning themselves into lab rats': the injectable peptides craze sweeping the US Well actually The Guardian Peptides like BPC 157, TB 500, and growth hormone secretagogues are increasingly marketed for recovery and injury healing., But what does the science actually say?, Most evidence comes from animal The Role of Peptides in Bone Healing and Regeneration (CGRP, OGP, BPC 157) UnderstandOrtho Stable Gastric Pentadecapeptide BPC 157 as Therapy After Surgical Detachment of the Quadriceps Muscle from Its Attachments for Muscle to Bone Reattachment in Rats