GHK Cu: Skin Benefits GHK Cu is a copper peptide studied for its role in supporting collagen production, skin repair, and anti oxidant activity. Research suggests it may help improve skin firmness, elasticity, and overall GHK Cu is a powerful copper peptide that supports collagen production, skin and hair health, and tissue repair. It may help reduce fine lines, improve elasticity, and promote faster healing. Want to learn A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend The tripeptide GHKCu complex ameliorates lipopolysaccharideinduced acute lung injury in mice Oncotarget Ever heard of the Glow Stack? It's a popular peptide trioGHK Cu, TB 500, and BPC 157aimed at total body regeneration. GHK Cu is the star here; clinical trials show it can increase collagen density by cancer and ghkcu : r Peptidesource