What is GHK-Cu studied for in research?

GHK-Cu is studied within extracellular-matrix remodeling, collagen, and skin-research models as a copper-binding tripeptide. It is for research use only and is not approved for human use.

The blue color comes from the copper coordinated to the GHK tripeptide. A blue reconstituted solution is expected and is consistent with the copper-peptide chemistry, including in GHK-Cu-containing blends.

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GHK-Cu: Copper Peptide Research Overview

GHK-Cu (copper tripeptide-1) is a copper-binding tripeptide studied within extracellular-matrix remodeling, collagen, and skin-research models. Its copper coordination gives reconstituted solutions a characteristic blue color. It is supplied as a lyophilized powder for research use only and is not approved for human use.

What GHK-Cu is

GHK-Cu is the tripeptide glycyl-histidyl-lysine coordinated to a copper(II) ion. In research it is studied as a model copper-binding peptide within extracellular-matrix remodeling, collagen synthesis, and connective-tissue and skin-research contexts.

Why it turns solutions blue

The characteristic blue color of a reconstituted GHK-Cu solution comes from the coordinated copper. A blue solution is expected and is a visual signature of the copper-peptide chemistry, including in blends such as GLOW-70 that contain GHK-Cu.

Handling and documentation

GHK-Cu's copper coordination means reported complex formulas and weights vary by protonation convention across sources (values near 403.9 g/mol are common), so reconcile the exact formula and molecular weight against the lot-matched Certificate of Analysis before molar work. Store the lyophilized powder at -20°C protected from light and reconstitute with bacteriostatic water.

A blue solution is the expected visual signature of the coordinated copper, not a sign of a problem; minimize freeze-thaw cycles once the material is in solution. Every lot ships with a third-party Certificate of Analysis reporting HPLC purity and mass-spectrometry identity.

All products are intended strictly for in-vitro laboratory research and development use only. Not for human or veterinary use, not a drug, food, or cosmetic, and not intended to diagnose, treat, cure, or prevent any disease.