The following citations cover all quantitative claims made across clinicghkcu.com. Every GHK-Cu finding on this site maps to a numbered citation below.

21 total citations PubMed / PMC linked 2 foundational papers Research gaps noted
  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. PMID 3169264 PubMed ↗ DOI: 10.1016/0014-5793(88)80509-x
  2. Simeon A, Emonard H, Hornebeck W, Maquart FX. The tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu²⁺ stimulates matrix metalloproteinase-2 expression by fibroblast cultures. Life Sciences. 2000;67(18):2257–2265. PMID 11045606 PubMed ↗ DOI: 10.1016/s0024-3205(00)00803-1
  3. Leyden JJ, et al. Effects of GHK-Cu on MMP and TIMP Expression, Collagen and Elastin Production, and Facial Wrinkle Parameters. Journal of Aging Science. 2015. Open Access PDF ↗
  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. PMID 29987235 PMC ↗ DOI: 10.3390/ijms19071987
  5. 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. PMID 26236730 PMC ↗ DOI: 10.1155/2015/648108
  6. Pickart L, Margolina A. Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data. IJMS. 2018;19(7):1987. [COPD lung fibroblast findings — same source as #4.] PMID 29987235 PMC ↗
  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. Annals of Dermatology. 2016;28(4):438–443. PubMed ↗ DOI: 10.5021/ad.2016.28.4.438
  8. 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. PMID 38026438 PMC ↗ DOI: 10.1016/j.bioactmat.2023.10.002
  9. Pickart L, Margolina A. Regenerative and Protective Actions of the GHK-Cu Peptide. IJMS. 2018;19(7):1987. [Dermal papilla / TGF-beta1 / DHT mechanism — same source as #4.] PMID 29987235 PMC ↗
  10. Dou Y, Lee A, Zhu L, Morton J, Ladiges W. The potential of GHK as an anti-aging peptide. Aging Pathobiology and Therapeutics. 2020;2(1):58–61. PMID 35083444 PMC ↗ DOI: 10.31491/apt.2020.03.014
  11. 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. PMID 28212278 PMC ↗ DOI: 10.3390/brainsci7020020
  12. 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. PMID 35936787 PMC ↗ DOI: 10.3389/fmolb.2022.925700
  13. Lee S, Lee SM, Lee SH, Choi WK, Park SJ, Kim DY, et al. In situ photo-crosslinkable hyaluronic acid-based hydrogel embedded with GHK peptide nanofibers for bioactive wound healing. Acta Biomaterialia. 2023. PMID 37832839 PubMed ↗ DOI: 10.1016/j.actbio.2023.10.011
  14. Vignesh NR, Balakumaran C, Kumar NA, Sukanya G, Megalai AS, Sowbaghya PT. A study comparing the effect of dermaroller versus dermaroller with copper peptide in the management of acne scars. Journal of Cutaneous and Aesthetic Surgery. 2026. DOI: 10.25259/JCAS_56_2025 Full text ↗
  15. Leyden JJ, et al. Effects of Copper Tripeptide on the Growth and Expression of Growth Factors by Normal and Irradiated Fibroblasts. Archives of Facial Plastic Surgery. 2005;7(1):27–34. DOI: 10.1001/archfaci.7.1.27 Publisher ↗
  16. Chen H, Yang P, Xue P, Li S, Dan X, Li Y, Lei L, Fan X. Food-Derived Tripeptide-Copper Self-Healing Hydrogel for Infected Wound Healing. Biomaterials Research. 2025. PMID 39902373 PMC ↗ DOI: 10.34133/bmr.0139
  17. Adnan SB, Maarof M, Fauzi MB, Fadilah NIM. Exploring the Role of Tripeptides in Wound Healing and Skin Regeneration: A Comprehensive Review. International Journal of Medical Sciences. 2025;22(16):4175–4200. DOI: 10.7150/ijms.118118 Full text ↗
  18. Mortazavi SM, Mohammadi Vadoud SA, Moghimi HR. Topically applied GHK as an anti-wrinkle peptide: Advantages, problems and prospective. BioImpacts. 2024. PMID 39963574 PMC ↗ DOI: 10.34172/bi.30071
  19. Mortazavi SM, Mohammadi Vadoud SA, Moghimi HR. Topically applied GHK as an anti-wrinkle peptide. BioImpacts. 2024. [Cell-penetrating peptide penetration data — same source as #18.] PMID 39963574 PMC ↗
  20. Wang J, et al. GHK-Cu-liposomes accelerate scald wound healing in mice by promoting cell proliferation and angiogenesis. Wound Repair and Regeneration. 2017;25(2):270–278. DOI: 10.1111/wrr.12520 Publisher ↗
  21. 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. PMID 39795193 PMC ↗ DOI: 10.3390/molecules30010136