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Vegan Collagen Peptide

08 / the papers behind the findings

The papers test cells, skin pieces, people, and mice

Fifteen papers cover skin, hair, and body effects. Reviews examine earlier studies; a paper's title alone won't tell you what improved.

These papers found different changes in different kinds of tests

Wrinkle reviews discuss creams and possible future uses, not settled results. Repair reviews examine cell instructions and skin renewal.

The hair mixture combined GHK with another chemical. The test can't tell which ingredient helped.

Skin-passage research used removed skin, not treated people. The cell experiment found more collagen, not more cells.

Injury reviews read earlier work on muscles, bones, and joints. Vessel experiments used cells and animals, finding more vessels in tissue.

The mouth report describes darkened lining; the kidney report describes lost blood supply. The mouse experiment used tiny brain injections and found less eating.

The history review follows possible medicines toward sale. In the erection trial, men received both placebo and Melanotan II; neither side knew which was given.

  1. Mortazavi SM, Mohammadi Vadoud SA, Moghimi HR. Topically applied GHK as an anti-wrinkle peptide: Advantages, problems and prospective. BioImpacts. 2025;15:30071. ↗
  2. 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. ↗
  3. 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. ↗
  4. 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. ↗
  5. Hostynek JJ, Dreher F, Maibach HI. Human skin penetration of a copper tripeptide in vitro as a function of skin layer. Inflammation Research. 2011;60(1):79-86. ↗
  6. Pickart L. The human tri-peptide GHK and tissue remodeling. Journal of Biomaterials Science, Polymer Edition. 2008;19(8):969-988. ↗
  7. 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. ↗
  8. Mendias CL, Awan TM. Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance. Sports Medicine. 2026. ↗
  9. McGuire FP, Martinez R, Lenz A, Skinner L, Cushman DM. Regeneration or Risk? A Narrative Review of BPC-157 for Musculoskeletal Healing. Current Reviews in Musculoskeletal Medicine. 2025. ↗
  10. Hsieh MJ, et al. Therapeutic potential of pro-angiogenic BPC157 is associated with VEGFR2 activation and up-regulation. Journal of Molecular Medicine (Berlin). 2017;95:323-333. ↗
  11. Bonchev A. Changes in Oral Mucosa Associated with Melanotan II Injections: A Case Report. Life (Basel). 2026;16(2):265. ↗
  12. Eliason NL, Martin L, Low MJ, Sharpe AL. Melanocortin receptor agonist melanotan-II microinjected in the nucleus accumbens decreases appetitive and consumptive responding for food. Neuropeptides. 2022;96:102289. ↗
  13. Peters B, Hadimeri H, Wahlberg R, Afghahi H. Melanotan II: a possible cause of renal infarction: review of the literature and case report. CEN Case Rep. 2020;9(2):159-161. ↗
  14. Hadley ME, Dorr RT. Melanocortin peptide therapeutics: historical milestones, clinical studies and commercialization. Peptides. 2006;27(4):921-930. ↗
  15. Wessells H, Fuciarelli K, Hansen J, Hadley ME, Hruby VJ, Dorr R, Levine N. Synthetic melanotropic peptide initiates erections in men with psychogenic erectile dysfunction: double-blind, placebo controlled crossover study. J Urol. 1998;160(2):389-393. ↗