GHK-Cu

GHK-Cu (Glycyl-L-histidyl-L-lysine copper complex) is a naturally occurring copper peptide found in human plasma, saliva, and urine. Research has shown it plays a significant role in wound healing, collagen synthesis, and tissue remodeling. It has gained attention in anti-aging research for its ability to modulate gene expression related to tissue repair and regeneration, with studies documenting effects on over 4,000 human genes.