GHK-Cu
Also known as: Copper Tripeptide-1 · Copper Peptide · Glycyl-L-Histidyl-L-Lysine copper
A copper-binding tripeptide (Gly-His-Lys) studied for collagen synthesis, skin remodelling and hair-follicle support.
GHK-Cu is a tripeptide — glycine-histidine-lysine — bound to a single copper(II) ion. The GHK sequence occurs naturally in human plasma and declines with age, which is much of why it draws interest as a skin- and hair-focused research peptide.
It is the most cosmetically studied copper peptide: the literature explores its role in collagen and elastin synthesis, extracellular-matrix remodelling, antioxidant signalling and wound healing. This is why it appears both as an injectable research compound and as an active in topical formulations.
The copper ion is integral to the molecule’s activity, distinguishing it from copper-free peptides. Supplied for research purposes only, HPLC-verified with a Certificate of Analysis.
RELATED TERMS
Copper Peptide
A peptide complexed with a copper ion; the best-known is GHK-Cu, studied for skin remodelling and hair support.
Tripeptide / Tetrapeptide
Short peptides named for their residue count — three (tri), four (tetra), five (penta) amino acids.
Peptide Bond
The covalent amide bond linking amino acids into a peptide chain — the defining structural feature of every peptide.
Amino Acid
The building-block molecules of peptides and proteins; each contributes one residue to the chain.
Reconstitution
The process of dissolving a lyophilised (freeze-dried) peptide in a sterile solvent such as bacteriostatic water before study.
Educational content, not medical advice. All products supplied for research purposes only — not for human consumption.