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Its striking structural feature is charge density: a high proportion of lysine and glutamate residues in a very short chain, no aromatic residues, no cysteines, no hydrophobic core, and no stable secondary structure when free in aqueous solution

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PMID 23755725

How GHK-Cu Works for Hair Activates the Wnt/-catenin pathway a critical signalling cascade that triggers dormant hair follicles to enter the anagen (active growth) phase Stimulates collagen synthesis and extracellular matrix remodelling, strengthening the dermal papilla that anchors each hair follicle Reduces inflammation and oxidative stress via SOD (superoxide dismutase) upregulation, protecting follicles from damage Increases blood vessel formation (angiogenesis), improving nutrient delivery to the scalp Promotes the expression of genes associated with hair growth while suppressing genes linked to hair loss What the Research Says A landmark study published in the Journal of Investigative Dermatology found that GHK-Cu increased hair follicle size by 29% in treated subjects