Among the peptides studied for skin health and tissue regeneration, few have as extensive a research history as GHK-Cu — the glycyl-L-histidyl-L-lysine copper complex that occurs naturally in human plasma, saliva, and urine. First isolated in 1973 by Dr. Loren Pickart, GHK-Cu has been the subject of over 50 years of scientific investigation.
The Biology Behind GHK-Cu
GHK-Cu is a tripeptide that naturally declines with age — plasma concentrations drop from approximately 200 ng/mL at age 20 to around 80 ng/mL by age 60. This decline correlates with reduced tissue repair capacity, diminished collagen synthesis, and decreased skin elasticity — observations that have driven substantial research interest.
In laboratory and animal studies, GHK-Cu has been shown to:
- Stimulate collagen and elastin synthesis in fibroblasts
- Promote the production of glycosaminoglycans, critical for skin hydration and structure
- Accelerate wound healing and tissue remodeling
- Exhibit anti-inflammatory effects by modulating cytokine activity
- Activate antioxidant defense systems via superoxide dismutase upregulation
Gene Expression Research
Perhaps the most compelling aspect of GHK-Cu research is its effect on gene expression. Studies have shown that GHK-Cu modulates a broad network of genes — many associated with tissue remodeling, anti-aging pathways, and even anti-cancer mechanisms. This pleiotropic gene activity has made it a subject of interest well beyond cosmetic research.
Reconstitution and Handling
GHK-Cu is supplied as a lyophilized powder and is generally reconstituted with sterile or bacteriostatic water. Due to its copper content, researchers should handle it in appropriate laboratory conditions and avoid prolonged exposure to light and elevated temperatures.
In Our Catalog
Pure Peptides carries GHK-Cu in 50mg and 100mg concentrations, as well as in combination blends such as our GLOW and KLOW80 formulations, which pair it with BPC-157, TB-500, and KPV for comprehensive regenerative research applications.
⚠️ All products are intended strictly for laboratory and in-vitro research purposes only. Not approved for human or veterinary use.