Peptides are powerful. From GHK Cu to Retatrutide, NAD+, Melanotan II, and Thymosin Alpha 1 each one works through completely different pathways and can have very different effects on the body. Before RETATRUTIDE The Aesthetics Co. HGH, Retatrutide, MOTS c, and GHK Cu are an excellent combination for me at the moment. Here is why , HGH (Human Growth Hormone), Supports recovery and tissue repair, Helps maintain lean mass, GHK Cu 50mg Lyophilized Peptide PatriotChems