Professional The results speak for themselves. GHK Cu Peptide Serum by NanoSkin. Copper peptides, deep hydration and barrier support, all in one daily serum. Your skin deserves this. Facebook In Vitro and in Vivo Studies of pH Sensitive GHK Cu Incorporated Polyaspartic and Polyacrylic Acid Superabsorbent Polymer ACS Omega Copper Peptide Regenerating Serum for Glowing Skin and Hair Same GHK Cu. Better way. Same GHK Cu copper peptide complex. Completely different experience. If you've been eyeing the pen, put it down. We made something better, and your skin barrier will thank you GHK Cu Copper Peptide 120 Capsules 120mcg Anti Wrinkle Skin Repair Hair Growth eBay Snapklik.com : Skin Perfection Copper Peptide Serum GHK CU 1% For Face & Hair Copper Peptides For Skin, Hair, & Scalp 1% Blue Liquid For Face, Neck, Body, Scalp Multi Use Serum Booster