Native GHK-Cu peptide is released from the extracellular matrix, cleaved from its parent protein, SPARC (secreted protein, acidic, and rich in cysteine), during extracellular matrix remodelling. Studies find it has vital roles in copper transport, tissue repair, inflammation modulation, and gene regulation [1].
A tripeptide, GHK-Cu is composed of glycine (Gly), histidine (His), and lysine (Lys) [1]. This amino acid complex binds tightly to copper, forming a stable coordination complex [2]. This binding capacity is what gives GHK-Cu its unique biological signalling and regenerative properties [2]. After performing its functions, GHK-Cu is degraded by serum peptidases. Studies show that circulating levels decrease with age, averaging 200 ng/mL at age twenty and declining to 80 ng/mL by age sixty, potentially impacting regenerative capacity [1].
Copper(II) is a redox-active metal required as a cofactor for many enzymes, including cytochrome C oxidase, lysyl oxidase, and superoxide dismutase [2]. GHK binds copper in a bioavailable, non-toxic form, supports shuttling it into cells, and maintains intracellular copper homeostasis [2].
GHK-Cu shows abilities to up- or downregulate over 4,000 genes. These pathways are many, and include those involved in tissue regeneration and repair, anti-inflammatory signalling, antioxidant defenses, and cell growth and differentiation [2].
While scientists are still elucidating some of GHK-Cu peptide’s mechanisms, current research suggests that they include augmenting transcription factors, epigenetic modification (particularly histone and chromatin) and oxidative stress signalling [2].
Research is still emerging on the wide applications of GHK-Cu peptide; however, our current understanding of its actions point towards applications particularly in skin and hair, and regenerative processes.
Research suggests that GHK-Cu peptide may have roles in reprogramming older tissues to act more youthful [2]. When skin gets injured, GHK-Cu is naturally released, acting as an emergency signal to activate skin healing processes [3].
A study using a test tube wound model found that GHK-Cu increases the production of collagen (which gives skin structure), elastin (which keeps skin elastic), and decorin and glycosaminoglycans (key molecules that hydrate and organize skin tissue) [4].
GHK-Cu also supports the balance of enzymes that break down skin proteins, MMPs, and their inhibitors, TIMPs [5],[6]. This prevents the buildup of damaged proteins, and overactive breakdown, which can lead to thinning and sagging skin [2].
One cell-based study found that skin cells exposed to GHK-Cu in combination with red LED light had 12.5x greater cell survival, 230% increase in fibroblast growth factor, and 70% higher collagen production [7].
At the stem cell level, GHK-Cu improved the health and shape of basal cells in the epidermis, increasing markers of stemness, which may help skin regenerate better with age [8].
GHK-Cu peptides show benefits for supporting hair growth, by [9]:
Studies find that GHK-Cu can stimulate fibroblasts, a particular type of skin cell, to produce VEGF (vascular endothelial growth factor), which helps support the growth of new blood vessels surrounding the hair follicle [9]. More blood vessels allow for greater nutrient and oxygen delivery to the area, thus supporting stronger, faster growing hair [9].
It also reduces the production of TGF-beta, a chemical that signals to hair follicles to stop growing and enter the shedding phase of hair growth [9]. With less TGF-beta, hair remains in the growth phase for longer.
By encouraging dermal papilla cells to multiply and protecting them from apoptosis, GHK-Cu supports the development and growth of new hair, by keeping follicles healthy [9].
While more research is needed, our understanding of GHK-Cu points towards potential applications of this peptide in wound healing and repair processes, promotion of antioxidant defenses, angiogenesis, gene modulation, and more [2].
Research Use Only. All findings described above are derived from preclinical studies (animal models and in vitro experiments). GHK-Cu is not approved by the FDA for any diagnostic or therapeutic use in humans. Genesis Peptides makes no claims regarding human clinical efficacy. This product is sold exclusively for laboratory research.
Every lot undergoes five independent assays before release. Results are published in the lot-specific Certificate of Analysis.
Every lot undergoes our 4-panel testing protocol: HPLC purity analysis, ESI-MS identity confirmation, LAL endotoxin screening, and amino acid analysis (for peptides >15 residues). Full analytical data is published in the Certificate of Analysis for each lot.
Lyophilized peptides should be stored at -20°C or below for long-term stability. Once reconstituted, peptides should be stored at 2–8°C and used within a reasonable timeframe depending on the specific compound. Avoid repeated freeze-thaw cycles. Always store in a dry environment away from direct light.
Orders placed before noon PST, Monday–Saturday, ship the same day. We offer free standard shipping on orders over $150. All orders are shipped in insulated packaging with ice packs when necessary. Standard delivery typically takes 2–4 business days within the continental US.
No. All compounds sold by Genesis Peptides are strictly for in vitro and preclinical laboratory research purposes only. They are not approved for human consumption, therapeutic use, or diagnostic purposes. By purchasing, you confirm the products will be used solely for legitimate research applications.
A Certificate of Analysis (COA) is a document issued by our analytical laboratory that reports the results of all quality control tests performed on a specific lot of product. Each COA includes HPLC chromatograms, mass spectra, endotoxin results, and amino acid analysis where applicable. COAs are available in our COA Library for every lot we have shipped.
Yes. We offer volume pricing for universities, research institutions, and laboratories with recurring needs. Discounts begin at 10+ units and scale with volume. Contact our team for a custom quote tailored to your research requirements.
FOR RESEARCH USE ONLY — Products are sold exclusively for in vitro and preclinical laboratory research. Not for human consumption or administration. Not intended for diagnostic or therapeutic use. These statements have not been evaluated by the FDA.