A C-terminal extension includes a fatty acid side chain (C20 diacid) conjugated via a linker to promote strong albumin binding, thereby extending half-life
(2017) 12:e0183208
GHK-Cu exerts its effects primarily through gene expression modulation, influencing approximately 31% of the human genome by upregulating genes involved in antioxidant responses, DNA repair, protein metabolism, and cellular growth while downregulating inflammatory mediators, fibrinogen synthesis, and pathological processes including cancer metastasis
Its primary function is to promote gut and tissue integrity, but extensive research reveals it also enhances angiogenesis, wound healing, neuroprotection, and musculoskeletal recovery
Effects depend on peptide class, dose, delivery route, and baseline health