A copper-binding tripeptide with potent collagen-stimulating and hair follicle growth properties.
Chelates Cu²⁺ ions and delivers them to fibroblasts and hair follicle cells. Upregulates expression of collagen types I and III, elastin, and glycosaminoglycans. Research suggests AHK-Cu may be more potent than GHK-Cu for stimulating extracellular matrix components and has been shown to extend the anagen (growth) phase of hair follicles.
AHK-Cu was identified through screening of naturally occurring copper-binding peptides. Head-to-head comparisons with GHK-Cu in some fibroblast assays show higher potency for matrix production, though the clinical evidence base is less mature.
Often combined with GHK-Cu in the 'Glow Blend' used in skin and hair health research protocols, where the two copper peptides may offer complementary or additive effects.