GHK-Cu is a copper-binding tripeptide made of three amino acids (glycine, histidine, and lysine). It's best known for its role in skin, collagen, and tissue-repair research, and the copper it carries is what sets it apart from other peptides.
It also has a strong research base, with studies looking at how it interacts with cell signaling and the extracellular matrix (Pickart & Margolina, 2018). That's why it shows up so often as a reference peptide in this kind of work.
Research Applications
•Collagen and connective-tissue research
•Cell-signaling and communication studies
•Copper-peptide and copper-binding research
•Cosmetic and skin-research models
Supplied as a lyophilized powder for stability.