The Peptide Observer

Peptide research, explained for people who are not scientists.

Quick answer

What is GHK-Cu?

Built from index records dated 2026-10-09 to 2026-10-13 Compiled by an automated pipeline, checked by The Peptide Observer editorial desk How this site works

GHK-Cu is a peptide, grouped on this site under Tissue repair peptides, and the 12 research records kept here are 4 from studies in rats or mice and 8 that do not state what kind of study it is.

The literature search returned 92 records. This site keeps 12 of them, which is 13 per cent of what came back.

What it is

This site puts it in the Tissue repair peptides group.

A copper-binding tripeptide complex; the retrieved literature describes antioxidative activity and gene-expression effects rather than a single receptor target.[1, 2]

Stated in the titles of the cited 2012 Oxidative Medicine and Cellular Longevity and 2018 International Journal of Molecular Sciences papers.

What kind of records

The records kept here are animal and laboratory studies only.

That sentence is produced by counting, not by reading. What was counted: no interventional human trial record; 4 rodent and 0 in vitro records among 12.

What this does not settle

Where this comes from

The records cited above, in full.

  1. The human tripeptide GHK-Cu in prevention of oxidative stress and degenerative conditions of aging: implications for cognitive health. Oxid Med Cell Longev (2012). pmid:22666519
  2. Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data. Int J Mol Sci (2018). pmid:29986520