89030 95 5 GHK Cu Gly His Lys Cu Copper Tripeptide 1; Prezatide copper A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend Meet the ingredient your skin has been waiting for. GHK Cu, or Copper Tripeptide 1, is one of the most researched anti ageing actives in skincare. It firms. It renews. It supports collagen. And now Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum
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