GHK Cu (copper peptide) is a science backed anti aging compound that supports collagen production, skin regeneration, and overall skin health. Used in both topical serums and subcutaneous The tripeptide GHKCu complex ameliorates lipopolysaccharideinduced acute lung injury in mice Oncotarget GHK Cu: The Regenerative Peptide for Skin, Hair, and Healing Pulse & Remedy Topical GHK Cu: Skin Benefits, Best Forms, and Where to Buy GHK Cu Glow Peptide Stack for Skin Rejuvenation Jennifer R. Berman MD The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline