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Skin ageing is closely linked to declining collagen and elastin levels, which affect firmness, texture and elasticity over time. GHK-Cu, a naturally occurring copper peptide, has drawn attention for its potential to support these structural proteins. This article explains how GHK-Cu works within the skin, what current research suggests, and why researchers continue to study its regenerative properties today. Understanding GHK-Cu and Its Role in Skin GHK-Cu is a small peptide made up of three amino acids bound to copper. It occurs naturally within the human body, particularly in plasma, saliva and connective tissue, but levels tend to decrease steadily as people move through adulthood and into later life stages. This natural decline is one of the reasons interest in copper peptides has increased within the broader skincare and wellness community in recent years. Interest in the GHK-Cu peptide in Australia has grown steadily as more people explore science-backed ingredients …