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As a close structural relative of GHK-Cu (Gly-His-Lys), AHK-Cu shares the copper-chelating tripeptide architecture but exhibits a distinct biological activity profile studied particularly in the contexts of hair follicle biology, angiogenesis, and skin extracellular matrix research
We do not have long-term human safety data
Some individuals notice improved sleep quality, reduced morning stiffness, or slightly better tolerance for activities that previously caused discomfort
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