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GHK-Cu: The Copper Tripeptide Scientists Have Studied for Decades

For informational purposes about scientific research only. GHK-Cu is a research compound and is not approved for therapeutic use.

GHK-Cu โ€” full name Glycyl-L-Histidyl-L-Lysine copper(II) โ€” is one of the most studied peptide complexes in the scientific literature. Unlike many synthetic research compounds, GHK-Cu occurs naturally in the human body: it is found in blood plasma, urine and saliva. What makes it of extra interest to researchers is that its concentration in blood declines significantly with age โ€” from roughly 200 ng/ml at age twenty to about 80 ng/ml at age sixty. That observation was the starting point of extensive scientific research decades ago.

A compound with a long research history

GHK-Cu was first identified in the 1970s by biochemist Dr. Loren Pickart, who noticed that the plasma of young people had a stronger regenerative effect on liver cells than that of older people. The molecule responsible turned out to be the small tripeptide GHK, which forms a stable complex in the presence of copper: GHK-Cu.

Since then, hundreds of studies have been published in peer-reviewed journals, making GHK-Cu one of the best-documented research compounds in its category. Most publications can be found on PubMed using the search term “GHK copper peptide”.

Areas of research

  • Collagen synthesis โ€” Several studies examine the role of GHK-Cu in fibroblast activation and the regulation of collagen and elastin production in cell cultures
  • Wound healing and tissue repair โ€” GHK-Cu has been studied intensively in research models of wound contraction and extracellular matrix modulation
  • Angiogenesis โ€” Scientists are investigating possible effects on the formation of new blood vessels in research settings
  • Antioxidant mechanisms โ€” The complex is being studied for possible roles in neutralising free radicals and reducing oxidative damage in cell models
  • Gene expression โ€” More recent studies suggest that GHK-Cu may influence the expression of a considerable number of genes related to cell regeneration and inflammation regulation

Molecular properties

  • Chemical name: Glycyl-L-Histidyl-L-Lysine copper(II)
  • CAS number: 49557-75-7
  • Molecular weight: 340.38 g/mol (free acid)
  • Form: Lyophilised (freeze-dried) blue powder
  • Purity: โ‰ฅ98% (HPLC-analysed)

The blue colour of the powder is characteristic and is caused by the copper coordination in the complex.

Storage and reconstitution

In lyophilised form, GHK-Cu is stable at room temperature for short-term transport, but for optimal stability storage at โˆ’20ยฐC (long-term) or 2โ€“8ยฐC (short-term use) is recommended. After reconstitution with bacteriostatic water, the compound should be kept at 4ยฐC and processed within 28 days.

GHK-Cu is available at Peptide Europe in 50mg and 100mg, HPLC-tested at โ‰ฅ98% purity, with the COA (COA) per batch online.

View GHK-Cu in our range

All products at Peptide Europe are intended strictly for scientific research and laboratory use. Not intended for human consumption.

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