Copper-binding tripeptide
GHK-Cu
Also known as Copper peptide
Early human researchA naturally occurring copper peptide, widely used in topical skincare.
Evidence
Early human research
Regulatory status
Used in cosmetics. Not FDA-approved as a drug.
Class
Copper-binding tripeptide
What it is
GHK is a three-amino-acid peptide found in human plasma that binds copper. Its levels decline with age.
What the research shows
- Studied in wound healing and skin research, including small human studies of topical formulas.
- Common as an ingredient in cosmetic skin and hair products.
Read the published research on PubMed →
Researched for
GHK-Cu is not FDA-approved for the uses people commonly discuss. Its safety and effectiveness in people have not been established. Talk to a licensed provider before making any decision.
Educational content, not medical advice. This page does not recommend or dose any substance.
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