GHK-Cu (Copper Peptide)
Also Known AsCopper tripeptide-1 · Glycyl-L-histidyl-L-lysine:copper(II) · Lamin · Prezatide copper acetate
Discovered by Loren Pickart in the 1970s at the University of California, San Francisco while studying why liver cells from young individuals regenerated more effectively. He isolated GHK from human plasma albumin and identified its copper complex as the active form responsible for tissue remodeling.
Gly-His-Lys·Cu²⁺How GHK-Cu Works
Gene Expression Modulation
GHK-Cu modulates the expression of over 4,000 human genes at a concentration of 1μM, representing approximately 6% of the human genome. It upregulates genes involved in tissue repair and antioxidant defenses while suppressing genes associated with inflammation, fibrosis, and tissue destruction.
Collagen & Extracellular Matrix Remodeling
Stimulates synthesis of collagen types I, III, and V, elastin, decorin, and glycosaminoglycans. Simultaneously activates controlled breakdown of damaged ECM via metalloproteinases, enabling remodeling rather than scarring.
Copper-Dependent Enzyme Activation
Delivers copper to copper-dependent enzymes critical for tissue function: superoxide dismutase (antioxidant defense), lysyl oxidase (collagen cross-linking), and cytochrome c oxidase (mitochondrial energy production).
Anti-Inflammatory & Antioxidant
Potent antioxidant effects via SOD upregulation and iron-chelating properties that prevent Fenton reaction-mediated oxidative damage. Suppresses pro-inflammatory cytokines TNF-α and IL-6 while blocking lipid peroxidation.
Published Research
Skin Aging & Regeneration
StrongMultiple human clinical studies demonstrate that topical GHK-Cu increases collagen synthesis, improves skin elasticity, reduces fine lines, and enhances skin thickness and firmness. Comparative studies show performance equal or superior to tretinoin and vitamin C for photoaging markers, with superior tolerability.
Wound Healing
StrongExtensive clinical evidence from human trials showing accelerated wound closure, enhanced granulation tissue formation, and improved cosmetic outcomes. The copper peptide complex has been incorporated into FDA-cleared wound dressings and is used clinically in post-surgical recovery.
Hair Growth
ModerateClinical studies demonstrate increased hair follicle size, reduced hair shedding, and enhanced hair thickness when applied topically. Mechanism involves stimulation of follicular ECM, increased blood supply via VEGF, and potential Wnt/β-catenin pathway activation in dermal papilla cells.
COPD & Lung Tissue
EmergingGHK-Cu has been identified through gene expression analysis (Connectivity Map) as a compound that reverses the destructive gene expression signature of COPD/emphysema. Preclinical studies show restoration of normal lung tissue remodeling gene expression patterns.
Neuroprotection & Cognitive
PreclinicalPreclinical data suggests neuroprotective effects through antioxidant mechanisms and modulation of neurotrophic factor expression (NGF, BDNF). Iron chelation properties may be relevant to neurodegenerative conditions involving iron dysregulation.
Safety Profile
GHK-Cu has an excellent safety profile across multiple human clinical trials and decades of cosmetic use. No significant adverse effects reported in published literature. The peptide is naturally present in human plasma (200 ng/mL in young adults, declining with age) and has GRAS (Generally Recognized As Safe) status for cosmetic applications.
Handling & Storage
GHK-Cu is a copper-complexed peptide with a characteristic blue color. Reconstitute with bacteriostatic water. Store reconstituted solution at 2-8°C. Avoid contact with reducing agents that may strip the copper ion. Lyophilized powder stable at -20°C.
Peer-Reviewed Literature
- 1
GHK peptide as a natural modulator of multiple cellular pathways in skin regeneration
Pickart L, Vasquez-Soltero JM, Margolina A.
- 2
The human tripeptide GHK-Cu in prevention of oxidative stress and degenerative conditions of aging: implications for cognitive health
Pickart L, Vasquez-Soltero JM, Margolina A.
- 3
A gene expression signature of emphysema-related lung destruction and its reversal by the tripeptide GHK
Campbell JD, McDonough JE, Zeskind JE, et al.
- 4
A therapeutic approach for diabetic wound healing using biotinylated GHK incorporated collagen matrices
Arul V, Kartha R, Jayakumar R.
GHK-Cu FAQ
What is GHK-Cu?
GHK-Cu (glycyl-L-histidyl-L-lysine:copper(II)) is a naturally occurring copper-binding tripeptide found in human plasma, saliva, and urine. Discovered by Loren Pickart in 1973, it has been shown to modulate the expression of over 4,000 human genes and is extensively studied for skin regeneration, wound healing, and anti-aging applications.
Why does GHK-Cu decline with age?
Plasma GHK-Cu levels are approximately 200 ng/mL at age 20, declining to approximately 80 ng/mL by age 60 — a 60% reduction. This decline correlates with reduced regenerative capacity, slower wound healing, and increased susceptibility to degenerative conditions, suggesting GHK-Cu plays a role in the body's natural repair mechanisms.
How does GHK-Cu differ from other copper peptides?
GHK-Cu is a specific tripeptide (Gly-His-Lys) with a defined copper-binding domain and over 50 years of published research. Other 'copper peptides' may refer to various peptide-copper complexes with different structures and biological activities. GHK-Cu is the most extensively studied and has the largest body of clinical evidence.
What concentration of GHK-Cu is used in research?
Gene expression studies (Broad Institute Connectivity Map) use GHK at 1μM concentration. Clinical topical formulations typically contain 1-2% GHK-Cu. Research-grade lyophilized GHK-Cu allows precise concentration control for experimental applications.
GHK-Cu Products
All compounds 99%+ purity, verified by Janoshik Analytical. GMP-manufactured lyophilized powder.
GHK-Cu
100mgThe anti-aging powerhouse — tightens skin, grows thicker hair, fades scars, and resets 4,000+ genes back toward a youthful state.
- Visibly reduces wrinkles and tightens loose skin
- Stimulates thick, healthy hair growth and reduces thinning
Explore Related Research
TB-500
10mgYour body's built-in repair signal — speeds muscle recovery, heals stubborn injuries, and reduces chronic inflammation and pain.
- Dramatically speeds muscle and tissue recovery
- Reduces inflammation and chronic pain
BPC-157
10mgThe body's repair peptide — heals your gut, fixes injured tendons and joints, and accelerates recovery from virtually any tissue damage.
- Heals gut lining and fixes digestive issues
- Repairs tendons, ligaments, and joint injuries faster
Epitalon
10mgTurns back your biological clock — activates the enzyme that rebuilds telomeres, resets melatonin production, and extended lifespan in every model tested.
- Activates telomerase — literally lengthens your DNA's aging clock
- Resets melatonin production for better sleep as you age
Disclaimer: This monograph is provided for educational and research purposes only. G26x Peptides products are sold exclusively as research chemicals. They are not intended for human consumption, therapeutic use, or as dietary supplements. All research should be conducted in compliance with applicable laws and institutional review board protocols. Information presented here is sourced from published peer-reviewed literature and does not constitute medical advice.