People are turning themselves into lab rats': the injectable peptides craze sweeping the US Well actually The Guardian Peptides like BPC 157 are everywhere on social media right now. They are most commonly promoted for injury and tendon healing and are often paired with other peptides such as TB 500. The Hidden Risks of BPC157: What Patients Need to Know About Contamination and Safety Regenexx at New Regeneration Orthopedics Decoded with Dr Andrius: BPC 157 and Tendon Injuries Roam