What is GHK-Cu?
GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper) is a naturally occurring copper complex found in human plasma, saliva, and urine. It was first identified by Dr Loren Pickart in the 1970s during research into why old liver tissue regenerated when exposed to young blood plasma. The answer turned out to be GHK — a small tripeptide with a remarkable ability to stimulate tissue repair and regeneration.
GHK-Cu levels decline significantly with age. At age 20, plasma concentrations average around 200ng/mL. By age 60, that figure drops to approximately 80ng/mL — a 60% reduction that researchers believe may contribute to the slowed healing and reduced collagen production associated with ageing.
Gene Activation — The 4,000 Gene Story
What makes GHK-Cu particularly remarkable in the research literature is its apparent ability to influence gene expression at scale. Studies published by Dr Pickart and colleagues found that GHK-Cu activates or resets over 4,000 human genes — including genes involved in:
- Collagen and elastin synthesis
- Antioxidant and anti-inflammatory responses
- DNA repair mechanisms
- Stem cell activation
- Nerve and blood vessel regeneration
This breadth of genetic influence is unusual for a tripeptide and helps explain why GHK-Cu has been studied across such a diverse range of research applications.
GHK-Cu has been shown to increase collagen synthesis in fibroblast cultures by up to 70%, while simultaneously reducing inflammatory markers including IL-6 and TNF-alpha in cell studies.
Key Research Areas
Skin and Collagen Research
The most extensively published research on GHK-Cu relates to skin biology. Key findings include increased production of collagen, elastin, and dermatopontin — three proteins critical to skin structure and elasticity. Researchers have also documented improved wound healing rates, reduced scar formation, and enhanced skin barrier function in model studies.
The cosmetics industry has incorporated GHK-Cu into topical formulations for decades based on this research, though injectable research protocols are a more recent focus of investigation.
Hair Follicle Research
GHK-Cu has been studied for its effects on hair follicle biology, with pre-clinical research showing stimulation of follicle size, increased hair growth rate, and reduced follicle regression in animal models. The proposed mechanism involves activation of stem cells within the hair follicle bulge region.
Wound Healing and Tissue Repair
Multiple studies have demonstrated GHK-Cu's role in accelerating wound closure, increasing angiogenesis at wound sites, and improving the tensile strength of healed tissue. These findings overlap with BPC-157 research, and the two compounds are sometimes studied in combination for comprehensive tissue repair protocols.
Anti-inflammatory and Antioxidant Activity
Research demonstrates significant anti-inflammatory effects, including inhibition of oxidative damage to cells, reduction of free radical activity, and downregulation of multiple inflammatory pathways. This makes GHK-Cu of interest in cellular ageing research beyond its direct structural repair functions.
GHK-Cu as You Age
The age-related decline in GHK-Cu is one of the reasons this compound attracts growing research interest in longevity science. The 60% drop between ages 20 and 60 correlates with reduced collagen production, slower wound healing, and increased systemic inflammation — all hallmarks of biological ageing that researchers are investigating ways to address.
LA LAB GHK-Cu
LA LAB supplies GHK-Cu as a 100mg vial, third-party tested by Janoshik Analytical for purity and identity. It is also a core component of our GLOW Stack, which combines multiple skin and cellular research compounds.