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Anti-Aging Research Guide

GHK-CU: Dosage, Benefits & Research Guide

Also known as: Copper peptide GHK-Cu, glycyl-L-histidyl-L-lysine copper

Key Facts

GHK-CU is a anti-aging research peptide (C14H23CuN6O4, MW 401.91 g/mol). Copper-binding tripeptide for skin regeneration and anti-aging research. It is supplied as a lyophilized powder for laboratory and in-vitro research use only — not for human consumption.

Classification Copper-binding tripeptide complex
Molecular Formula C14H23CuN6O4
Molecular Weight 401.91 g/mol
CAS Number 89030-95-5
Research Half-Life Short; acts locally in tissue-research models
Form Lyophilized powder
Research Category Anti-Aging

What is GHK-CU?

GHK-Cu (glycyl-L-histidyl-L-lysine copper complex) is a naturally occurring copper-binding tripeptide first isolated from human plasma by Pickart and Thaler in 1973. Its mechanism of action involves delivering bioavailable copper ions to tissues, where copper serves as a cofactor for lysyl oxidase (collagen crosslinking), superoxide dismutase (antioxidant defense), and other metalloenzymes critical for tissue maintenance. GHK-Cu modulates gene expression of over 4,000 human genes, broadly shifting patterns toward tissue remodeling and repair (Pickart et al., BioMed Research International, 2012). Research demonstrates it upregulates collagen types I and III, elastin, decorin, and glycosaminoglycan synthesis while simultaneously downregulating metalloproteinase activity that degrades extracellular matrix. In wound healing studies, GHK-Cu accelerated dermal wound contraction and re-epithelialization in animal models (Leyden et al., Archives of Dermatological Research, 2002). The peptide also shows neuroprotective properties; studies suggest it reduces oxidative damage markers and may support nerve regeneration through NGF and VEGF upregulation. Compared to retinoids and vitamin C in skin research, GHK-Cu operates through a fundamentally different mechanism centered on copper-dependent enzymatic activity and broad transcriptomic remodeling rather than receptor activation or direct antioxidant scavenging. At 100mg, this formulation supports extended research protocols. Store lyophilized powder at -20C protected from light; reconstitute with sterile water and refrigerate at 2-8C. GHK-Cu is researched by dermatology departments, cosmetic science laboratories, and neuroscience institutions studying copper-dependent tissue repair and gene regulation.

GHK-CU Research Applications

In published and preclinical research, GHK-CU has been studied across the following areas:

  • Skin regeneration and anti-aging studies
  • Wound healing and antimicrobial activity
  • Nervous system support and neuroprotection
  • Pain management research

GHK-CU in Research: Reconstitution & Study Concentrations

GHK-Cu is a naturally occurring copper-binding tripeptide studied for skin remodeling, wound-repair signaling and antioxidant gene expression. Research uses concentrations expressed for the in-vitro or topical model in question. The lyophilized powder is reconstituted with bacteriostatic or sterile water for laboratory use only.

Worked example: a 50mg vial reconstituted with 2 mL of bacteriostatic water yields 25.00 mg/mL.

Open the reconstitution calculator

How GHK-CU Compares

Researchers frequently evaluate GHK-CU alongside related compounds:

GHK-CU — Frequently Asked Questions

What is GHK-Cu and how does it work?
GHK-Cu (glycyl-L-histidyl-L-lysine copper complex) is a naturally occurring copper-binding tripeptide found in human plasma, saliva, and urine. It functions by delivering bioavailable copper(II) ions to tissues, activating copper-dependent enzymes including lysyl oxidase (critical for collagen cross-linking) and superoxide dismutase. In preclinical research, GHK-Cu has been observed to modulate the expression of over 4,000 genes related to tissue remodeling, antioxidant defense, and stem cell activity.
What research has been done on GHK-Cu?
Research by Dr. Loren Pickart (published in Journal of Biological Chemistry and multiple dermatology journals) characterized GHK-Cu's role in wound healing and gene expression modulation. Studies demonstrated increased collagen I and III synthesis, elastin production, and glycosaminoglycan accumulation. Broad gene expression analysis (Genome Medicine, 2014) showed GHK-Cu influences pathways related to anti-inflammation, DNA repair, and tissue remodeling.
How does GHK-Cu compare to Snap-8?
GHK-Cu and Snap-8 address skin aging through fundamentally different mechanisms. GHK-Cu works at the cellular level by promoting collagen and elastin production, activating stem cells, and modulating gene expression for tissue remodeling. Snap-8 acts by inhibiting SNARE complex formation to reduce neuromuscular activity underlying dynamic wrinkles. GHK-Cu is more broadly studied for regenerative applications, while Snap-8 research focuses specifically on expression-line reduction.
What is the recommended reconstitution protocol for GHK-CU?
For this 50mg vial, add 3 mL of bacteriostatic water to yield a concentration of 16.7mg/mL. Draw 10 units on a 1mL insulin syringe for a 1.7 mg dose. Inject BAC water slowly along the inner vial wall — do not shake. Allow the powder to dissolve fully (2–5 minutes). Administer in the AM, every day. Refrigerate reconstituted solution at 2–8°C and use within 30 days.
Is GHK-CU legal to buy for research?
GHK-CU is sold in the United States as a research chemical for laboratory and in-vitro use only. It is not approved by the FDA for human use and is not sold for human consumption. Researchers are responsible for compliance with all applicable federal, state, and institutional regulations.
How is GHK-CU reconstituted for research use?
GHK-CU ships as a lyophilized (freeze-dried) powder and is reconstituted with bacteriostatic or sterile water before use in research. The volume of solvent added determines the working concentration — use the Elyte reconstitution calculator to derive the exact concentration for a given vial size and solvent volume.
Does GHK-CU come with a Certificate of Analysis?
Yes. Every batch of GHK-CU from Elyte Peptides ships with a third-party Certificate of Analysis (COA) documenting identity and HPLC purity (≥98%), so research results can be traced to a verified lot.

Research References

  1. Pickart L, Margolina A. Regenerative and protective actions of the GHK-Cu peptide. Int J Mol Sci 2018.
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