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Loren Pickart, this peptide is found in human plasma, saliva, and urine, and its concentration tends to decrease with age
GHK-Cu does both
Ni T, Huang X, Pan S, Lu Z
In vitro models show it enhances superoxide dismutase activity for antioxidant effects and stimulates metalloproteinases for matrix turnover
Conversely, if you're coming from a minimal skincare routine with no actives, introducing copper peptides represents a significant change
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