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For others, they may introduce emotional challenges that require additional support
A 2009 paper in Archives of Dermatological Research observed that copper-bound GHK increased integrin expression and p63-positive keratinocyte counts in cell-culture experiments, framing one route by which the compound engages the dermal stem-cell compartment (PMID 19319546)
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Not FDA-approved for human use it's categorized as a research chemical
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