GHK-Cu
Also known as GHK
A copper-binding tripeptide studied in skin and matrix research models.
What it is
GHK is a tripeptide of glycine, histidine, and lysine that naturally binds copper to form the GHK-Cu (GHK) complex. It was first identified in human plasma and has a long history in skin, wound, and matrix research models.
How it is studied
Most published GHK-Cu research is in skin and matrix models exploring processes like collagen and extracellular matrix behavior in cell culture. This is research context, not a cosmetic or health claim.
Purity and COA
The copper complex is part of what defines the compound, so the COA should reflect the intended copper-to-peptide complex, not free peptide or excess copper salt. Identity and purity are documented per batch.
Further reading
Search the primary literature and registered studies for GHK-Cu on independent research databases. LNK is not affiliated with these sources and does not endorse their conclusions.