# GHK-Cu References: Published Research Citations and Sources

> GHK-Cu published references: 22 primary research citations spanning 1991–2026, with PubMed links, DOIs, and journal details. The complete citation record behind this literature digest.

## Published references and citations

The GHK-Cu literature on this site is drawn from 22 primary citations spanning 1991–2026. Every quantitative claim maps to a numbered citation below. The full citation list covers primary research papers, systematic reviews, and recent 2024–2026 publications. All PubMed-indexed papers are linked to their PubMed abstract pages; DOIs are provided for all citations. The Badenhorst 2016 Journal of Aging Science paper is not indexed on PubMed but is included with its open-access URL. The 2025 Frontiers in Pharmacology colitis paper is linked to the Frontiers full-text page.

For [GHK-Cu mechanism of action](/research#mechanism), see the Research page. For [GHK-Cu hair loss evidence](/hair-growth#hair-loss), see the Hair Growth page. For [copper peptide for skin repair](/skin-research), see the Skin Research page. For [published references and citations](/references) in the sortable format, use the table below.

## References

[1] Pickart L, Margolina A. Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data. Int J Mol Sci. 2018;19(7):1987. https://pubmed.ncbi.nlm.nih.gov/29986520/
[2] Campbell JD, McDonough JE, Zeskind JE, et al. A gene expression signature of emphysema-related lung destruction and its reversal by the tripeptide GHK. Genome Med. 2012;4(8):67. https://pubmed.ncbi.nlm.nih.gov/22937864/
[3] Pickart L, Vasquez-Soltero JM, Margolina A. The human tripeptide GHK-Cu in prevention of oxidative stress and degenerative conditions of aging: implications for cognitive health. Oxid Med Cell Longev. 2012;2012:324832. https://pubmed.ncbi.nlm.nih.gov/22666519/
[4] Pickart L, Vasquez-Soltero JM, Margolina A. GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration. Biomed Res Int. 2015;2015:648108. https://pubmed.ncbi.nlm.nih.gov/26236730/
[5] Badenhorst T, Svirskis D, Merrilees M, Bolke L, Wu Z. Effects of GHK-Cu on MMP and TIMP Expression, Collagen and Elastin Production, and Facial Wrinkle Parameters. J Aging Sci. 2016. https://www.walshmedicalmedia.com/abstract/effects-of-ghkcu-on-mmp-and-timp-expression-collagen-and-elastin-production-and-facial-wrinkle-parameters-15237.html
[6] Pickart L, Vasquez-Soltero JM, Margolina A. The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline. Brain Sci. 2017;7(2):20. https://pubmed.ncbi.nlm.nih.gov/28212278/
[7] Lee WJ, Sim HB, Jang YH, Lee SJ, Kim DW, Yim SH. Efficacy of a Complex of 5-Aminolevulinic Acid and Glycyl-Histidyl-Lysine Peptide on Hair Growth. Ann Dermatol. 2016;28(4):438-443. https://pubmed.ncbi.nlm.nih.gov/27489425/
[8] Zhou XB, et al. GHK Peptide Inhibits Bleomycin-Induced Pulmonary Fibrosis in Mice by Suppressing TGFbeta1/Smad-Mediated Epithelial-to-Mesenchymal Transition. Front Pharmacol. 2017;8:904. https://pubmed.ncbi.nlm.nih.gov/29311918/
[9] Tucker M, Liao GY, Park JY, et al. Behavioral and neuropathological features of Alzheimer's disease are attenuated in 5xFAD mice treated with intranasal GHK peptide. Aging Pathobiol Ther. 2023 (preprint bioRxiv). https://pubmed.ncbi.nlm.nih.gov/38045355/
[10] Tucker M, Keely A, Park JY, et al. Intranasal GHK peptide enhances resilience to cognitive decline in aging mice. bioRxiv (preprint). 2023. https://pubmed.ncbi.nlm.nih.gov/38014118/
[11] Min JH, Sarlus H, Harris RA. Glycyl-l-histidyl-l-lysine prevents copper- and zinc-induced protein aggregation and central nervous system cell death in vitro. Metallomics. 2024;16(4). https://pubmed.ncbi.nlm.nih.gov/38599632/
[12] Mao S, Huang J, Li J, Sun F, Zhang Q, et al. Exploring the beneficial effects of GHK-Cu on an experimental model of colitis and the underlying mechanisms. Front Pharmacol. 2025. https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2025.1551843
[13] Dou Y, Lee A, Zhu L, Morton J, Ladiges W. The potential of GHK as an anti-aging peptide. Aging Pathobiol Ther. 2020;2(1):58-61. https://pubmed.ncbi.nlm.nih.gov/35083444/
[14] Hong M, Gui Y, Xu J, et al. Palmitoyl copper peptide and acetyl tyrosine complex enhances melanin production in both A375 and B16 cell lines. Biochem Biophys Res Commun. 2025;744:151060. https://pubmed.ncbi.nlm.nih.gov/39632290/
[15] Mortazavi SM, Mohammadi Vadoud SA, Moghimi HR. Topically applied GHK as an anti-wrinkle peptide: Advantages, problems and prospective. Bioimpacts. 2024. https://pubmed.ncbi.nlm.nih.gov/39963574/
[16] Fan C, Chen Y, Huang Q, et al. Overview of Short Peptides for Hair Loss. Biomedicines. 2026;14(4):864. https://pubmed.ncbi.nlm.nih.gov/42072405/
[17] Miller TR, Wagner JD, Baack BR, Eisbach KJ. Effects of topical copper tripeptide complex on CO2 laser-resurfaced skin. Arch Facial Plast Surg. 2006;8(4):252-259. https://pubmed.ncbi.nlm.nih.gov/16847171/
[18] Trachy RE, Fors TD, Pickart L, Uno H. The hair follicle-stimulating properties of peptide copper complexes. Results in C3H mice. Ann N Y Acad Sci. 1991;642:468-469. https://pubmed.ncbi.nlm.nih.gov/1809108/
[19] Pickart L, Vasquez-Soltero JM, Margolina A. The human tripeptide GHK-Cu in prevention of oxidative stress and degenerative conditions of aging: implications for cognitive health. Oxid Med Cell Longev. 2012;2012:324832. https://pubmed.ncbi.nlm.nih.gov/22666519/
[20] Pickart L, Vasquez-Soltero JM, Margolina A. GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration. Biomed Res Int. 2015;2015:648108. https://pubmed.ncbi.nlm.nih.gov/26236730/
[21] Dou Y, Lee A, Zhu L, Morton J, Ladiges W. The potential of GHK as an anti-aging peptide. Aging Pathobiol Ther. 2020;2(1):58-61. https://pubmed.ncbi.nlm.nih.gov/35083444/
[22] Zhou XB, et al. GHK Peptide Inhibits Bleomycin-Induced Pulmonary Fibrosis in Mice by Suppressing TGFbeta1/Smad-Mediated Epithelial-to-Mesenchymal Transition. Front Pharmacol. 2017;8:904. https://pubmed.ncbi.nlm.nih.gov/29311918/

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A medical-desk index of the peer-reviewed GHK-Cu record — thirty-plus studies indexed, copper-biology cited at the source, no clinic behind the reference shelf.