Copper Peptides (GHK-Cu): Benefits for Skin
Copper peptides, best known as GHK-Cu, are small copper-bound peptides used in skincare to support firmness, smoothness and overall skin quality. Interest in copper peptide serums has grown sharply, and they are increasingly paired with PDRN as a regenerative routine.
What are copper peptides?
Copper peptides are peptides (short chains of amino acids) bound to copper. The most studied form is GHK-Cu. In skincare they are valued as a signalling ingredient: they are used to support the skin's structure and to help skin look firmer and smoother over time.
What do copper peptides do for the skin?
Copper peptides are used to support firmness and a smoother, healthier-looking complexion. They are a popular choice for skin that is starting to lose bounce, or for anyone building a routine focused on long-term skin quality rather than a quick fix.
Copper peptides + PDRN: the regenerative duo
Copper peptides are often combined with PDRN (salmon DNA). PDRN supports recovery and soothing, while copper peptides support firmness — which is why the combination is described online as a "regenerative duo". Cleenlab already brings the two together in one serum.
