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 doesnt have human data yet, so FDA takes first step in possible reversal of ban on some peptides The Washington Post The U.S. Food and Drug Administration is moving toward allowing compounding pharmacies to produce more than a dozen injectable peptides that were banned because of potentially significant safety risks, the New York BPC 157: Experimental Peptide Creates Risk for Athletes