People are turning themselves into lab rats': the injectable peptides craze sweeping the US Well actually The Guardian GHKCu Copper Peptide Therapy Skin & Healing Regeneration GHK Cu DrBrainRX A large number of peptides currently being marketed to the public are not FDA approved. These include BPC 157, LL 37, DSIP, Epitalon, GHK Cu (injectable), GHRP 2, GHRP 6, ipamorelin, kisspeptin 10, KPV, melanotan II, PEG MGF, MOTS C,