Advanced GHK Cu Neck & Face Serum Premium Quality Neurogan Health GHK Cu is not Botox. It does not freeze a single muscle. It works because it works at the matrix level. GHK Cu stimulates collagen and glycosaminoglycan synthesis, modulates the matrix metalloproteinases that govern Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms Most people think skincare works at the surface level. But healthy skin function starts much deeper than a temporary glow. GHK Cu is a naturally occurring copper binding tripeptide that is already found GHK Copper Peptide GHK Cu Tripeptide 1