Copper Peptides

Copper peptides are research compounds that combine a peptide sequence with a copper ion. The best-known example, GHK-Cu (the copper-binding tripeptide glycyl-L-histidyl-L-lysine), is studied in copper-coordination, extracellular-matrix and gene-expression research.

Copper is an essential trace element involved in numerous enzymatic processes, and this category is studied for copper transport and matrix gene expression in cell models. Supplied lyophilized at 99%+ purity, third-party tested by HPLC and mass spectrometry. For laboratory and research use only.

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About copper peptide research compounds

Copper peptides pair a short sequence with a copper(II) ion. In GHK-Cu and AHK-Cu the histidine at position two forms the metal-binding site, so both are studied for their coordination chemistry as much as for their sequence.

Compounds in this category

  • GHK-Cu (50mg, 100mg): the copper complex of glycyl-histidyl-lysine, studied in extracellular matrix and gene-expression research. GHK-Cu research overview.
  • AHK-Cu (50mg, 100mg): the copper complex of alanyl-histidyl-lysine, a close relative of GHK-Cu studied in dermal cell culture.
  • GLOW Blend and KLOW Blend: GHK-Cu combined with BPC-157 and TB-500, and KLOW adds KPV.

GHK was first isolated from human plasma in the 1970s, and its copper complex is by far the most published copper peptide. AHK-Cu is newer and much less studied, which makes the pair useful for comparing a well-characterized sequence with a close analog under the same conditions.

Frequently asked questions

How do GHK-Cu and AHK-Cu differ?

They differ by one amino acid at the first position: glycine in GHK-Cu, alanine in AHK-Cu. Both bind copper through the same histidine-based site.

Why is GHK-Cu blue?

The color comes from the copper(II) ion bound to the peptide. A lyophilized copper peptide is normally blue to violet.

How are these peptides supplied?

As lyophilized powder at 99%+ purity, verified by independent HPLC and mass spectrometry, for laboratory research use only.

All compounds are supplied as lyophilized powder at 99%+ purity for laboratory research use only. Not for human or veterinary use.