Peptides are the hottest word in wellness right now, so naturally I had to dive in!, The peptide stack I am trialing is GHK CU (hair, skin & nails) and Glutathione (neutralizes free radicals, reduces Oral Liposomal Copper GHK The Integrative Wellness Center GHK Cu Copper Peptide Benefits, Uses & Safety Intra V GHK Cu Peptide Serum 30 ml, Copper Peptide Serum with Hyaluronic Acid for Tightening, Collagen Boosting Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum