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Moreover, GHK-Cu complex appears to be the only peptide-copper complex that can penetrate stratum corneum membranes
The authors reported a 55.8% reduction in facial wrinkle volume and a 32.8% reduction in wrinkle depth compared with control serum, alongside in vitro evidence that GHK-Cu increased both collagen and elastin production in human dermal fibroblasts at concentrations as low as 0.01 nM [4]
Taken together, these data suggest that GHK-Cu creates more favorable conditions for nerve tissue regeneration and its resistance to stress factors, although confirmation in humans still requires further research
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