What are peptides? The treatments promising weight loss and better skin, explained Vox What Peptides Are Legal in the U.S.? Understanding FDA Approval, Compounding, and the Legal Gray Areas Holt Law BPC 157 aka Wolverine. This peptide is not FDA approved, but it is very popular among the biohacking population. Ashley explains the science behind it, but remember, it doesn't have human data yet, so The Peptide Gamble: A Doctor's Warning on BPC 157 and TB 500 Multifunctionality and Possible Medical Application of the BPC 157 PeptideLiterature and Patent Review