Research Use OnlySkin
GHK, the uncomplexed Gly-His-Lys tripeptide, studied as a copper-affinity signaling molecule.
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Affinity studies
Copper-binding affinity and complex formation are common research endpoints.
Signaling
Gene-expression and repair-signaling models are widely documented.
Comparator
Frequently studied side-by-side with the GHK-Cu complex.
GHK is the human tripeptide Gly-His-Lys with a high affinity for copper(II). In research it is studied as a signaling molecule for tissue repair and gene-expression modulation, often as a comparator to the copper-complexed GHK-Cu form.
GHK Basic is the copper-free form of the GHK tripeptide, studied as a signaling molecule involved in skin renewal and regenerative pathways.
“Having the uncomplexed GHK alongside GHK-Cu lets us isolate the copper variable cleanly. Batch consistency has been reliable.”

Elena V.
Dermatology research, 33
It depends on the study design. GHK is the uncomplexed peptide; GHK-Cu is pre-complexed with copper. Many protocols compare both.
For Research Use Only. Not intended for human or animal use. These products are not drugs, foods, or cosmetics and are not intended to diagnose, treat, cure, or prevent any disease.