GHK-Cu and Collagen: What Does Research Show?

By Neshiva · October 13, 2026

Collagen is an important structural protein found in skin and other connective tissues. Researchers have studied whether GHK-Cu influences processes associated with collagen synthesis.

Scientific findings

In a 1988 study published in FEBS Letters, researchers reported increased collagen synthesis in fibroblast cultures exposed to GHK-Cu under controlled laboratory conditions. [1]

Research limitations

Fibroblast cultures are not equivalent to intact human skin. The study does not establish that applying a commercial GHK-Cu cream increases collagen production in people or visibly reduces wrinkles.

Frequently asked questions

Does GHK-Cu increase collagen in human skin?

The study discussed here observed increased collagen synthesis in cultured fibroblasts in a laboratory. It does not establish that a commercial GHK-Cu cream increases collagen production in people.

Does GHK-Cu reduce wrinkles?

This study did not evaluate wrinkles. Clinical outcomes such as visible wrinkle reduction require separate human evidence.

References

Maquart FX, Pickart L, Laurent M, Gillery P, Monboisse JC, Borel JP. Stimulation of collagen synthesis in fibroblast cultures by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+. FEBS Letters. 1988;238(2):343-346. PMID: 3169264. https://pubmed.ncbi.nlm.nih.gov/3169264/

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This article is for general educational purposes and is not medical advice. Research findings discussed here may not apply to a particular skincare product or individual. Treatment decisions should be made with a qualified healthcare professional.