BPC 157 vs. TB 500: Which One Actually Works? Dr. McKenna's Orthopedics and Biologics Texas Pentadecapeptide BPC 157 and the central nervous : Neural Regeneration Research Modulatory effects of BPC 157 on vasomotor tone and the activation of Src Caveolin 1 endothelial nitric oxide synthase pathway Scientific Reports 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.