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GHK-Cu may prevent oxidative stress in skin by regulating copper and modifying expression of antioxidant genes
Peak antioxidant effects show up around 36 months of daily use
Trehalose + glycerin + hyaluronate maintain water-binding hydration so the surface looks smoother, more supple, and more uniformly reflective
Based on the mechanism (gene expression changes in fibroblasts), meaningful structural outcomes would still require weeks, not days
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