Plain-English overview
GHK-Cu is a naturally occurring tripeptide that binds copper. It is one of the more familiar peptide names in skincare because topical research has examined collagen, elastin and tissue-remodelling markers.
How it is thought to work
The copper-peptide complex appears to participate in repair signalling: collagen production, antioxidant defences, angiogenesis and hair-follicle activity are common research targets.
Research interest areas
- Skin firmness and texture
- Wound-repair signalling
- Hair-follicle research
What the research suggests
Topical and laboratory skin data are the strongest parts of the profile. Other uses are more exploratory and should not be treated as equivalent to cosmetic evidence.