Ingredient glossary
GHK-Cu
INCI: Copper Tripeptide-1 · Also: Copper Peptide
Solid and proven
Does GHK-Cu clash with what you already use? Check it →A genuinely useful ingredient with real evidence behind it, not hype.
What it does
- anti aging
- repair
- antioxidant
moderate evidenceReviews summarize multiple studies showing increased collagen elastin and glycosaminoglycan synthesis and improved wound healing yet cosmetic anti aging trials remain relatively small.
On a label: usually effective at 0.01-0.1%.
Who it's for, and who should skip it
Tends to suit
- normal
- dry
- photoaged
- compromised barrier
Approach with care
No specific group flagged to avoid it.
- Clogs poresLow
- Irritation riskLow
Plays well with
- niacinamide
- antioxidants
- other peptides
This, for every label you own
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Educational information about a cosmetic ingredient, not medical advice.