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Research guides

What each compound is, what the studies measured and what is still open. Every figure carries its source. Written for the laboratory, not the clinic.

All topicsMetabolicCognitive researchMitochondriaSkinTissue repairLab practice
CompoundEvery compoundTirzepatideSemaglutideRetatrutideCagrilintideSelankSemaxSS-31MOTS-cNAD+GHK-CuBacteriostatic Water
SkinTissue repairPodcast

What is GHK-Cu? The copper peptide research so far

GHK-Cu is a copper-binding tripeptide identified in human plasma that has been studied in fibroblast cultures, animal wound models and a small number of human trials. This guide sets out what those gene-expression, skin-model and topical human studies measured, and what has not yet been shown.

23 September 2026 · 21 min read