Research Overview · Research Use Only
GHK-Cu: research overview
GHK-Cu is a copper-binding tripeptide - the short sequence glycyl-histidyl-lysine bound to a copper ion. It occurs naturally in the body and is one of the most studied compounds in the skin, repair, and longevity research categories.
What is GHK-Cu?
GHK-Cu is a tripeptide (three amino acids: glycine, histidine, and lysine) that binds a copper ion, which is what the "Cu" refers to. It is found naturally in plasma and other tissues, and its levels are observed to decline with age - a detail that helps explain its place in longevity research.
What research has explored
In preclinical (laboratory) research, GHK-Cu has been investigated for its role in skin remodeling, wound-repair signaling, and broad effects on gene expression. These are research findings, not established human outcomes; GHK-Cu is not approved for human use and is studied as a research material only.
Where it appears in blends
GHK-Cu is sometimes included in multi-peptide recovery blends alongside compounds like BPC-157 and TB-500. You will find it on its own and referenced in blends in the research peptide catalog.
Forms & handling in the lab
GHK-Cu ships as a lyophilized (freeze-dried) powder with its characteristic blue color from the copper, commonly in 50 mg or 100 mg research vials. Before use it is reconstituted with bacteriostatic water; the water volume you add sets the concentration in mg/mL. It is particularly light-sensitive, so protect it from light.
🧮Calculate concentration & syringe units
Enter vial size, water volume, and target amount for exact figures.
Storage & stability
- Lyophilized powder - most stable form; keep frozen or refrigerated and protected from light until reconstituted.
- Reconstituted solution - refrigerate at roughly 2-8 °C, protect from light, and as a general research guideline use within about 28 days.
- Avoid repeated freeze-thaw cycles, heat, and light exposure, which can degrade the peptide.
Frequently asked questions
What is GHK-Cu?
What is GHK-Cu studied for?
How is GHK-Cu reconstituted?
Related guides
GHK-Cu & longevity peptides in the catalog
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