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The dose-response curve for GHK-Cu is non-linear and may even be biphasic
It shifts melanin production from darker eumelanin to lighter pheomelanin, resulting in a brighter complexion
The peptide also shows benefits in photoaging models, where chronic UV-induced inflammation contributes to ongoing tissue damage
You may see improved skin hydration in 24 weeks , but significant changes in pigmentation and skin tone usually take 812 weeks of daily use
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