An FDA Reversal on Peptides Could Open the Market to Unsafe Drugs ProPublica Retatrutide. BPC 157. CJC 1295. Ipamorelin. TB 500. Tesamorelin. They're called "research chemicals." They're sold as cheat codes for healing, fat loss, and muscle growth. Here's what they don't tell you: ALL banned by Unauthorized injectable peptide drugs seized and sold by Canada Peptide may pose serious health risks Canada.ca RFK Jr. may reverse a peptide ban he calls 'illegal.' Former FDA officials say he mischaracterized their work. The Lund Report Therapeutic Peptides in Aesthetic, Metabolic and Endocrine Conditions: Effects, Safety, Clinical Applications, and Future Perspectives