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GHK-Cu's most rigorous human evidence comes from a 2001 double-blind, placebo-controlled trial published in the Archives of Dermatology by Leyden and colleagues, which demonstrated significant improvements in skin laxity, density, and thickness after 12 weeks of topical use compared to placebo

Combined with GHK-Cu (Copper Tripeptide-1) in a precise 1:1 ratio 4,800mg of pure copper peptides

1 Consequently, less than one percent of glutathione enters the systemic circulation to exert its beneficial effects

Comparative study of the Ar and He atmospheric pressure plasmas on E-cadherin protein regulation for plasma-mediated transdermal drug delivery