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 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 GHK Cu 99%+ Pure Peptide Amino Club Amino Club Niod Copper Amino Isolate Serum 3 1:1 Space NK Copper peptide our favorite active ingredient IDOLAB