Can a patient with a history of liver or kidney disease, such as Wilson's disease or hemochromatosis, overdose on copper from Gly His Lys Copper (GHK Cu)? Wilson's Disease Encyclopedia MDPI Wilson's Disease (Hepatolenticular Degeneration). That brownish gold circle around the cornea is the famous Kayser Fleischer (K F) Ring. It occurs due to Copper deposition in the Descemet's membrane of the eye. Classic Triad 5 things that might surprise you about GHK Cu 1 Your body already makes it. GHK Cu is a naturally occurring copper peptide found in plasma, saliva, and urinebut levels decline as we age.