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The Collection
GHK-CU 100mg — The Source house vial

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Certificates of Analysis · 2

  • Lot 20260102gk

    99.745% · Freedom Diagnostics · 2026-02-11Report 2602090073 · 100mg

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  • Certificate of Analysis

    99.559% · Kovera Labs · 2026-06-17Report KVR-2026-20675F · 100mg

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For research use only — not for human or animal use.

Radiance

GHK-CU

$80.00

Strength  ·  100mg

GHK-Cu is a copper-binding tripeptide researched for its role in models of tissue-remodeling and skin-matrix signaling.

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Research Notice
For laboratory research use only. Not for human consumption.

The Dossier

Research Notes

GHK-Cu is a naturally occurring tripeptide-copper complex — glycyl-L-histidyl-L-lysine chelated to a copper(II) ion — first isolated from human plasma in 1973. Its endogenous levels are documented to decline with age, and the bound copper gives the complex its characteristic blue-purple color.

It is a signature reference in the radiance category, studied for its role in models of tissue-remodeling and skin-matrix signaling.

Research Focus

  • Wound-healing and tissue-regeneration models
  • Skin extracellular-matrix and dermatology models
  • Hair-follicle research
  • Antioxidant and anti-inflammatory models
  • DNA-repair and gene-modulation research

Mechanism

GHK-Cu is characterized as a copper-delivery vehicle that 'redox-silences' the bound ion — supplying copper to enzymes such as lysyl oxidase and superoxide dismutase while limiting oxidative toxicity.

Gene-expression analyses describe it as a broad modulator, shifting expression across thousands of genes, with reported engagement of Nrf2/Keap1 antioxidant signaling and NF-κB/p38 MAPK modulation, alongside stimulation of extracellular-matrix synthesis.

Molecular Profile

Sequence
Gly-His-Lys · Cu²⁺
Molecular weight
≈401.9 Da
CAS number
89030-95-5
Also known as
Copper Tripeptide-1

Storage & Handling

Store the lyophilized powder at −20°C, protected from moisture. It is characterized as stable across a mildly acidic-to-neutral pH range and dissociates outside it; hold reconstituted solution cold.

References

  1. Pickart L, Margolina A. Regenerative and protective actions of the GHK-Cu peptide in light of new gene data. Int J Mol Sci. 2018.
  2. Pickart L, et al. Growth-modulating plasma tripeptide may function by facilitating copper uptake into cells. Nature. 1980.

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KLOW extends the three-peptide GLOW stack with a fourth reference — KPV — pairing GHK-Cu, BPC-157, and TB-500 with the anti-inflammatory…

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