New: An FDA decision to place 19 peptides on the unsafe list was supported by numerous documented safety concerns, former officials said. Even though demand for peptide therapies has exploded since then, FDA Compliance for Peptide Therapy and BPC 157 Holt Law Burst Biologics Gets and FDA Warning Letter: Claims vs Reality Regenexx BPC 157: Miracle Healing Peptide or Hidden Danger? FDA warning letters target marketers of unapproved weight loss drugs RAPS