BPC 157 TB 500 Erectile Dysfunction Effects: What the Evidence Actually Shows BPC 157 And TB 500: Background, Indications, Efficacy, And Safety GlobalRPH 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.