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Dietary Supplements: Some formulations may include GHK-Cu in capsule form, though injectable and topical applications remain the most effective

By binding copper(II) ions, it helps regulate gene expression linked to collagen formation, angiogenesis, antioxidant defense, and tissue remodeling. The peptides small size allows it to penetrate tissues efficiently, and its copper-transfer activity underlies its reported effects on skin, hair, and wound-healing processes in laboratory models

In the cosmetics and skincare industry, GHK-Cu is widely used as an ingredient in topical products available over-the-counter in Canada

Evidence the U.S