Just started GHK Cu? Here's what to expect This isn't an overnight peptide, it builds Weeks 12: You may start noticing small shiftsskin feels a bit smoother, nails a little stronger Weeks 34: Copper Peptide (GHK Cu) 2% Recovery Serum SumaNurica GHK Cu Repairing Serum 30ml MYER Defy GHK Cu (glycyl L histidyl L lysine) is a naturally occurring copper binding peptide found in human plasma. As levels decline with age, so may its support of the biological processes involved in collagen production, skin GHK Cu Topical Cream How to Measure and Inject GHK Cu (Copper Peptide for Skin and Tissue Repair) YouTube