Description

GHK-Cu Peptide: Skin Repair, Wound Healing, and Anti-Aging Benefits

What is GHK-Cu?

GHK-Cu is a naturally occurring complex composed of the tripeptide GHK (glycine, histidine, lysine) bound to a copper ion. The copper stabilizes and delivers GHK to cells. Research suggests that GHK-Cu may aid tissue restoration, wound repair, and immune support by stimulating collagen, elastin, and glycosaminoglycan production.

Additionally, GHK-Cu may have antioxidant and anti-inflammatory properties that protect cells from free radical damage.

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Chemical Information

• Molecular Formula: C14H23CuN6O4

• Molecular Weight: 340.38 g/mol

• Other Names: Cu-GHK, Copper tripeptide-1, 6BJQ43T1I9

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Collagen Synthesis and Tissue Repair

Studies indicate that GHK-Cu stimulates collagen production and tissue regeneration. The Gly-His-Lys sequence, derived from collagen breakdown, may signal fibroblasts to produce new collagen fibers.

Clinical studies suggest GHK-Cu increases type I collagen synthesis, improves dermal procollagen levels, boosts skin thickness, elasticity, and hydration, and supports keratinocyte proliferation and differentiation.

GHK-Cu may also work synergistically with hyaluronic acid (HA). In specific ratios, the combination significantly enhances collagen IV production and supports the dermal-epidermal junction, promoting structural skin integrity.

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Wound Healing and Infection Prevention

GHK-Cu may reduce inflammation and infection risk in wounds. Animal studies on ischemic wounds showed decreased TNF-alpha, MMP-2, and MMP-9 levels, suggesting reduced tissue breakdown and inflammation.

Clinical trials on diabetic neuropathic ulcers reported faster wound closure with GHK-Cu, achieving infection rates of 7% compared to 34% in controls. Collagen-infused dressings with GHK also enhanced wound healing, increasing antioxidant levels and epithelialization.

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Antioxidant and Anti-Inflammatory Effects

GHK-Cu may protect against oxidative stress by scavenging reactive oxygen, nitrogen, and carbonyl species. It may also prevent protein glycation and reduce iron release from ferritin, lowering oxidative damage.

Animal studies indicate GHK-Cu suppresses NF-κB and p38 MAPK pathways, decreasing TNF-alpha and IL-6, and reducing inflammatory cell infiltration in lung tissue. Its antioxidative potential may exceed that of generic peptides.

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Anti-Aging and Wrinkle Reduction

GHK-Cu improves skin topography, firmness, and clarity. Studies suggest it reduces fine lines, wrinkle depth, and mottled pigmentation while increasing skin density and thickness.

In 12-week trials, GHK-Cu outperformed control compounds and vitamin K in improving skin elasticity and reducing wrinkles. It also promotes dermal keratinocyte proliferation, supporting overall skin regeneration.

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References

1. Maquart, F. X., Pickart, L., Laurent, M., Gillery, P., Monboisse, J. C., & Borel, J. P. (1988). Stimulation of collagen synthesis in fibroblast cultures by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+. FEBS letters, 238(2), 343–346. https://doi.org/10.1016/0014-5793(88)80509-x
2. Abdulghani, A. A., Sherr, A., Shirin, S., Solodkina, G., Tapia, E. M., Wolf, B., & Gottlieb, A. B. (1998). Effects of creams containing vitamin C, a copper-binding peptide cream and melatonin compared with tretinoin on the ultrastructure of normal skin-A pilot clinical, histologic, and ultrastructural study. Disease Management and Clinical Outcomes, 4(1), 136-141.
3. Jiang F, Wu Y, Liu Z, Hong M, Huang Y. Synergy of GHK-Cu and hyaluronic acid on collagen IV upregulation via fibroblast and ex-vivo skin tests. J Cosmet Dermatol. 2023 Sep;22(9):2598-2604. doi: 10.1111/jocd.15763. Epub 2023 Apr 16. PMID: 37062921.
4. Canapp, S. O., Jr, Farese, J. P., Schultz, G. S., Gowda, S., Ishak, A. M., Swaim, S. F., Vangilder, J., Lee-Ambrose, L., & Martin, F. G. (2003). The effect of tripeptide-copper complex on healing of ischemic open wounds. Veterinary surgery : VS, 32(6), 515–523. https://doi.org/10.1111/j.1532-950x.2003.00515.x
5. Mulder, G. D., Patt, L. M., Sanders, L., Rosenstock, J., Altman, M. I., Hanley, M. E., & Duncan, G. W. (1994). Enhanced healing of ulcers in patients with diabetes by treatment with glycyl-l-histidyl-l-lysine copper. Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society, 2(4), 259–269. https://doi.org/10.1046/j.1524-475X.1994.20406.x