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Injection site reactions, such as redness or swelling, can often be managed by rotating the injection site between the abdomen, thigh, or upper arm

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About this article Cite this article Masson, W., Lobo, M., Nogueira, J.P

The copper coordination chemistry of GHK-Cu enables controlled cellular copper delivery while preventing the formation of reactive oxygen species characteristic of free copper toxicity, with the peptide's binding affinity (log K = 16.1) positioning it perfectly within the physiological copper transport hierarchy to facilitate controlled metal transfer to enzymatic targets including lysyl oxidase (essential for collagen cross-linking) and superoxide dismutase (critical for antioxidant defense)

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