2 weeks in on GHK Cu and the glow is REAL., Brighter complexion, More even skin tone, Less breakouts, Softer fine lines, Thicker, fuller hair, This is just the beginning. Consistency is Evaluating the stability and safety of GHK Cu encapsulated in an Download Scientific Diagram Why does Glycyl Histidyl Lysine Copper (GHK Cu) cause pain or discomfort? Copper Peptides Before and After Hair: What to Expect Month by Month HapiPatch