FDA to weigh easing limits on peptides promoted by RFK Jr. NBC 6 South Florida FDA Puts BPC 157, TB 500, and 5 Other Peptides Under the Microscope: What Prescribers Need to Know About the 503A Review Lengea BPC 157: Miracle Healing Peptide or Hidden Danger? Everyone online is suddenly injecting peptides. But almost nobody understands the scienceor the regulation. The FDA recently shifted several peptides off the Category 2 safety risk list tied to compounding rules. First, that The Peptide Craze Part 2: BPC 157, NAD and the Truth Behind the Longevity Molecule Hype