GHK-Cu

Copper Tripeptide-1 — Regenerative, Anti-Inflammatory, and Gene-Modulating Research Peptide

GHK-Cu (Copper Tripeptide-1) is a naturally occurring human plasma tripeptide (glycyl-L-histidyl-L-lysine) with a strong affinity for copper (II) ions. Identified in 1973 as a wound-healing modulator, GHK-Cu has since emerged as a key molecule in tissue regeneration, stem-cell activation, anti-inflammatory signaling, and epigenetic gene modulation.

In experimental settings, GHK-Cu has demonstrated the ability to:

• Activate regenerative gene pathways

• Enhance collagen synthesis and remodeling

• Modulate inflammation via cytokine suppression

• Improve cellular repair after oxidative stress

• Support angiogenesis, fibroblast function, and extracellular-matrix turnover

Its broad transcriptomic influence—affecting over 4,000 genes in human cells—makes it a powerful research tool for investigating mechanisms of tissue repair, aging, and organ protection.

Specifications

Synonyms: Copper Tripeptide-1, GHK-Cu, Gly-His-Lys-Cu²⁺
Molecular formula: C₁₄H₂₄N₆O₄ · Cu
Molecular weight: 340.9 g/mol
Class: Regenerative copper-binding tripeptide
Primary research domains: Tissue repair, wound healing, anti-inflammatory signaling, fibrosis, angiogenesis, skin biology, hair-follicle regeneration, neuroprotection

Mechanism of Action — Copper Mobilization & Regenerative Signaling

1. High-Affinity Copper Binding

GHK serves as a high-affinity carrier for Cu²⁺, enabling controlled copper delivery to injured tissues.
Copper binding triggers:

• Activation of lysyl oxidase, essential for collagen cross-linking

• Modulation of HIF-1α and angiogenesis signaling

• Stimulation of superoxide dismutase (SOD) and antioxidant responses

2. Gene Expression Modulation (Transcriptomic Remodeling)

A landmark systems-biology analysis revealed that GHK-Cu can upregulate 31% of human genes associated with tissue repair while downregulating inflammatory and fibrotic pathways.
Research shows activation of genes involved in:

• Collagen I & III synthesis

• Integrins, ECM remodeling enzymes

• Nerve regeneration and axonal repair

• Antioxidant defense

• Anti-cancer and anti-senescence pathways

This makes GHK-Cu a valuable model compound for studying epigenetic regulation of healing processes.

3. Anti-Inflammatory and Anti-Fibrotic Pathways

In vitro and animal studies demonstrate GHK-Cu:

• Reduces TNF-α, IL-1β, and inflammatory prostaglandins

• Suppresses TGF-β–driven fibrosis

• Inhibits NF-κB activation

• Decreases oxidative stress markers

These mechanisms are key for research involving chronic inflammation, aging, and scar modulation.

4. Angiogenesis and Wound-Healing Research

GHK-Cu enhances:

• Endothelial cell migration

• Fibroblast proliferation

• Keratinocyte function

• Collagen matrix organization

• Neovascularization of healing tissue

This profile makes it ideal for exploring skin, tendon, ligament, and vascular repair.

GHK-Cu in Skin, Hair, and Aging Research

Skin Biology & Collagen Remodeling

Multiple studies show increases in:

• Collagen types I and III

• Dermal glycosaminoglycan production

• Elastin and integrin expression

• Reduction in UV-induced damage

GHK-Cu is widely used as a research model for cutaneous regeneration and anti-aging signaling.

Hair Follicle & Stem-Cell Activity

GHK-Cu has shown:

• Stimulation of dermal papilla cell proliferation

• Upregulation of Wnt and BMP signaling

• Enhanced follicular angiogenesis

• Protection against DHT-induced damage in vitro

These findings support its role as a hair-growth research peptide.

GHK-Cu in Organ Protection, Lung and Nervous System Studies

Lung Injury and COPD Models

GHK-Cu has been shown to:

• Reduce inflammatory infiltrates

• Improve antioxidant enzyme activity

• Reverse gene signatures associated with emphysema

Neuroprotective Effects

In rodent models:

• Restores neuronal function after ischemic injury

• Enhances synaptic repair signaling

• Reduces oxidative mitochondrial damage

GHK-Cu is thus useful for studying neuroregeneration and oxidative-stress–related CNS disorders.

Other Experimental Applications

Researchers also utilize GHK-Cu in:

• Fibrosis models (skin, liver, lung)

• Anti-cancer gene expression studies

• Metabolic stress response

• Copper metabolism and transport

• Senescence and longevity research

Its broad biochemical effects make GHK-Cu a uniquely versatile research compound.

Research Use Only – Important Notice

This GHK-Cu 50 mg product is supplied exclusively for laboratory research purposes.

• Not for human or veterinary use

• Not for diagnostic, therapeutic, or cosmetic applications

• Intended only for controlled in vitro and in vivo experimental models

• Descriptions above summarize findings from preclinical and mechanistic studies, not medical claims or usage guidelines

References

1. Pickart L, et al. The human tri-peptide GHK and tissue remodeling. J Biomater Sci Polym Ed.
   https://pubmed.ncbi.nlm.nih.gov/23982867/

2. Pickart L, Vasquez-Soltero JM, Margolina A. GHK-Cu may counteract the pathology of COPD and emphysema: a systems biology approach. Int J COPD.
   https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4717160/

3. Maquart FX, et al. Stimulation of collagen synthesis by copper peptide in fibroblast cultures. Biochem Pharmacol.
   https://pubmed.ncbi.nlm.nih.gov/2413941/

4. Hong Y, et al. Protective effects of GHK-Cu peptide against UV-induced damage in human keratinocytes. Mol Med Rep.
   https://pubmed.ncbi.nlm.nih.gov/24920351/

5. Ahmed S, et al. GHK-Cu modulates inflammatory gene expression via NF-κB suppression. Inflammopharmacology.
   https://pubmed.ncbi.nlm.nih.gov/30604088/

6. Takahashi T, et al. GHK-Cu induces proliferation and angiogenesis in endothelial cells. J Dermatol Sci.
   https://pubmed.ncbi.nlm.nih.gov/9530645/

7. Zhang L, et al. Gene expression signature reversal by GHK in aging skin. Clin Cosmet Investig Dermatol.
   https://pubmed.ncbi.nlm.nih.gov/33204021/