FDA Puts BPC 157, TB 500, and 5 Other Peptides Under the Microscope: What Prescribers Need to Know About the 503A Review Lengea Peptides are a HUGE category. Were talking about everything from insulin to GLP 1s Some are incredibly well researched and FDA approved., But in the injury recovery world? Thats where it gets a BPC 157: What you need to know before you try it You are hearing more about BPC 157. Patients ask about it daily. Here are the most common questions answered. What is BPC 157? BPC 157 BPC 157 Banned: Key Facts on the Latest FDA Decision