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The Journal of Nutrition, Volume 54, Issue 4, December 1954, Pages 571577, Halick, J.V

The biological roles proposed for GHK-Cu in the research literature have included effects on collagen and extracellular matrix synthesis (through copper-dependent enzymes including lysyl oxidase), on antioxidant gene networks (where copper participates in both prooxidant and antioxidant chemistry depending on context), on growth factor activity in tissue repair, on hair follicle biology, and on broader transcriptional programs characterized in microarray and RNA-seq studies

Similar findings are reported in healthy young animals

Palucci I, Maulucci G, De Maio F, Sali M, Romagnoli A, Petrone L, Fimia GM, Sanguinetti M, Goletti D, De Spirito M, et al