Full Citation List

All 22 references cited across this field guide, organized by reference number. GHK-Cu research references span 1988–2025, with the majority in the Pickart laboratory tradition supplemented by independent replications and recent 2024–2025 work in gut, muscle, skin permeation, and alopecia.

  1. [1] Maquart FX, Pickart L, Laurent M, Gillery P, Monboisse JC, Borel JP. Stimulation of collagen synthesis in fibroblast cultures by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+. FEBS Letters. 1988;238(2):343-346. DOI: 10.1016/0014-5793(88)80509-x PMID: 3169264 PubMed ↗
  2. [2] Pickart L, Vasquez-Soltero JM, Margolina A. GHK and DNA: Resetting the Human Genome to Health. BioMed Research International. 2014;2014:151479. DOI: 10.1155/2014/151479 PMID: 25302294 PMC ↗
  3. [3] Pickart L, Vasquez-Soltero JM, Margolina A. GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration. BioMed Research International. 2015;2015:648108. DOI: 10.1155/2015/648108 PMID: 26236730 PMC ↗
  4. [4] Pickart L, Margolina A. Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data. International Journal of Molecular Sciences. 2018;19(7):1987. DOI: 10.3390/ijms19071987 PMID: 29986520 PMC ↗
  5. [5] Pickart L. The human tri-peptide GHK and tissue remodeling. Journal of Biomaterials Science, Polymer Edition. 2008;19(8):969-988. DOI: 10.1163/156856208784909435 PMID: 18644225 PubMed ↗
  6. [6] 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. Annals of Dermatology. 2016;28(4):438-443. DOI: 10.5021/ad.2016.28.4.438 PMID: 27489425 PMC ↗
  7. [7] Liu T, Liu Y, Zhao X, Zhang L, Wang W, Bai D, Liao Y, Wang Z, Wang M, Zhang J. Thermodynamically stable ionic liquid microemulsions pioneer pathways for topical delivery and peptide application. Bioactive Materials. 2023. DOI: 10.1016/j.bioactmat.2023.10.002 PMID: 38026438 PMC ↗
  8. [8] Hou G, et al. GHK Peptide Inhibits Bleomycin-Induced Pulmonary Fibrosis in Mice by Suppressing TGFbeta1/Smad-Mediated Epithelial-to-Mesenchymal Transition. Frontiers in Pharmacology. 2017;8:904. DOI: 10.3389/fphar.2017.00904 PMID: 29311918 PMC ↗
  9. [9] Zhang Q, Yan L, Lu J, Zhou X. Glycyl-L-histidyl-L-lysine-Cu2+ attenuates cigarette smoke-induced pulmonary emphysema and inflammation by reducing oxidative stress pathway. Frontiers in Molecular Biosciences. 2022;9:925700. DOI: 10.3389/fmolb.2022.925700 PMID: 35936787 PMC ↗
  10. [10] Deng M, Zhang Q, Yan L, et al. Glycyl-l-histidyl-l-lysine-Cu2+ rescues cigarette smoking-induced skeletal muscle dysfunction via a sirtuin 1-dependent pathway. Journal of Cachexia, Sarcopenia and Muscle. 2023. DOI: 10.1002/jcsm.13213 PMID: 36905132 PMC ↗
  11. [11] He Q, Mazzola J, Ladiges W. The naturally occurring peptide GHK reverses age-related fibrosis by modulating myofibroblast function. Aging Pathobiology and Therapeutics. 2024;6(4):186-190. DOI: 10.31491/apt.2024.12.158 PMID: 40823151 PMC ↗
  12. [12] 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. Journal of Cosmetic Dermatology. 2023;22(9):2598-2604. DOI: 10.1111/jocd.15763 PMID: 37062921 PubMed ↗
  13. [13] Hostynek JJ, Dreher F, Maibach HI. Human skin penetration of a copper tripeptide in vitro as a function of skin layer. Inflammation Research. 2010. DOI: 10.1007/s00011-010-0238-9 PMID: 20721598 PMC ↗
  14. [14] 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 Sciences. 2017;7(2):20. DOI: 10.3390/brainsci7020020 PMID: 28212278 PMC ↗
  15. [15] Tucker M, Keely A, Park JY, Rosenfeld M, Wezeman J, Mangalindan R, Ratner D, Ladiges W. Intranasal GHK peptide enhances resilience to cognitive decline in aging mice. Aging Pathobiology and Therapeutics. 2023. DOI: 10.1101/2023.11.16.567423 PMID: 38014118 PMC ↗
  16. [16] Mao S, Huang J, Li J, Sun F, Zhang Q, Cheng Q, Zeng W, Lei D, Wang S, Yao J. Exploring the beneficial effects of GHK-Cu on an experimental model of colitis and the underlying mechanisms. Frontiers in Pharmacology. 2025;16:1551843. DOI: 10.3389/fphar.2025.1551843 PMID: 40672369 PubMed ↗
  17. [17] Kuceki M, Coppinger A, Ragi J, Johnson M, Goren A, Kalil C, Cirino J, Wambier CS. Enhanced hair regrowth with five monthly sessions of minoxidil-dutasteride-copper peptides tattooing for androgenetic alopecia assessed by artificial intelligence and blinded evaluators. JAAD International. 2025. DOI: 10.1016/j.jdin.2025.01.012 PMID: 40225275 PMC ↗
  18. [18] 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. Journal of Aging Science. 2016;4:166. DOI: 10.4172/2329-8847.1000166 PDF ↗
  19. [19] Ogorek K, Nowak K, Wadych E, Ruzik L, Timerbaev AR, Matczuk M. Are We Ready to Measure Skin Permeation of Modern Antiaging GHK-Cu Tripeptide Encapsulated in Liposomes? Molecules. 2025;30(1):136. DOI: 10.3390/molecules30010136 PMID: 39795193 PMC ↗
  20. [20] 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. Oxidative Medicine and Cellular Longevity. 2012;2012:324832. DOI: 10.1155/2012/324832 PMID: 22666519 PMC ↗
  21. [21] Xu S, Zhou L, Zhao H, Li S. Advances in Transdermal Delivery Systems for Treating Androgenetic Alopecia. Pharmaceutics. 2025;17(8):984. DOI: 10.3390/pharmaceutics17080984 PMID: 40871007 PMC ↗
  22. [22] Ogorek K, Nowak K, Wadych E, Ruzik L, Timerbaev AR, Matczuk M. Are We Ready to Measure Skin Permeation of Modern Antiaging GHK-Cu Tripeptide Encapsulated in Liposomes? (stability data section). Molecules. 2025;30(1):136. DOI: 10.3390/molecules30010136 PMID: 39795193 PMC ↗