Amazon.com: GHK Cu Copper Peptide Oral Liquid Drops, 6 in 1 Liposomal GHK Cu Supplement w. Marine Collagen Peptides, Hyaluronic Acid, Biotin & Grape Seed, Support Skin Elasticity, Anti Aging, Hair Growth & Nails : Health GHK cu 3% Serum Copper Peptide Niod Copper Amino Isolate Serum 3 1:1 Space NK No, we're not actually injecting copper GHK Cu is a peptide your body already makes (just less of it as you age). It binds to copper and helps signal repair. Why people 50 years of research. Over 4,000 genes studied. Three amino acids. , GHK Cu is one of the most extensively researched tripeptides in modern biochemistry. In this Reel we break down the science what