A landmark 2009 study found that GHK-Cu reversed the gene expression of older skin cells to look more like young skin cells, upregulating collagen and downregulating inflammatory genes
GHK-Cu is sold as research-use-only because it has not been evaluated by the FDA for human therapeutic use
Daily subcutaneous injection in the abdomen
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Neurology 2019;92(17):e2005e2014
Our Copper Peptide GHK-Cu Serum (No 3) works at a cellular level to visibly firm, plump, and repair