One of my personal favorite peptides: GHK Cu (Copper Peptide) I've been using this one consistently and I absolutely love what it does for skin health, healing, and overall cellular repair. GHK Cu is Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 Your skin deserves more than surface level solutions. GHK Cu is a powerful copper peptide known to support: Collagen production Skin regeneration Reduction in fine lines and wrinkles Improved elasticity Cellular Glow Copper Peptide GHK Cu Serum for Face GHK Cu copper peptides calm, repair, strengthen If your skin often feels: red or reactive irritated even from gentle skincare tight, dehydrated or burning tired and sensitive