GHK CU Viral claim says GHK Cu reset nearly 4,000 genes to a younger state and increased collagen production in a preclinical study. This refers to research on GHK Cu, a naturally occurring copper binding peptide that Stem cell, Granulocyte Colony Stimulating Factor and or Dihexa to promote limb function recovery in a rat sciatic nerve damage repair model: Experimental animal studies ScienceDirect GHK CU: 100mg Supernova Peptides