Electrophoretic deposition of GHK Cu loaded MSN chitosan coatings with pH responsive release of copper and its bioactivity ScienceDirect Copper Peptides For Skin: Benefits & Side Effects Minimalist Uses and Benefits #ghk GHK Cu is a naturally occurring peptide in human plasma that declines with age. When used in injections (usually subcutaneous), it can offer various benefits: Skin Rejuvenation and Anti Aging: Revitalize Your Skin: The Benefits of Copper Peptide for Youthful Glow GHK Cu Glow Peptide Stack for Skin Rejuvenation Jennifer R. Berman MD