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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

Whitney Bowe, a dermatologist in New York City

FDA 503A Category 2 (April 2026) On April 15, 2026, the FDA published a 503A bulks list update

You need to keep the peptide refrigerated for the entire duration of your travel