Skip to main content
Legit KLOW Collagen, repair and the meaning of legit.

KLOW peptide reading list

The collagen papers sit alongside tendon, wound, intestinal and human pilot studies. The differences between their experiments are as interesting as the shared repair vocabulary.

Return to the collagen storyRead the research article

Starting points

For the question at the centre of this site, begin with the GHK study in aged mouse fibroblasts and the GHK skin-regeneration review. Together they introduce the tension between collagen production and the behaviour of cells handling that material.

The rat tendon experiment adds mechanical and functional outcomes, while the topical GHK review brings formulation difficulties back into the picture. The complete citation list follows.

  1. Malinda KM, et al. Thymosin beta4 accelerates wound healing. J Invest Dermatol. 1999;113(3):364-368. ↗
  2. Staresinic M, et al. Gastric pentadecapeptide BPC 157 accelerates healing of transected rat Achilles tendon and in vitro stimulates tendocytes growth. J Orthop Res. 2003;21(6):976-983. ↗
  3. Dalmasso G, Charrier-Hisamuddin L, Nguyen HT, Yan Y, Sitaraman S, Merlin D. PepT1-mediated tripeptide KPV uptake reduces intestinal inflammation. Gastroenterology. 2008;134(1):166-178. ↗
  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. 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. ↗
  6. Lee E, Burgess K. Safety of Intravenous Infusion of BPC157 in Humans: A Pilot Study. Altern Ther Health Med. 2025;31(5):20-24. ↗
  7. Mendias CL, Awan TM. Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance. Sports Med. 2026. ↗
  8. 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. ↗
  9. 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. ↗
  10. Pyo HK, Yoo HG, Won CH, Lee SH, Kang YJ, Eun HC, Cho KH, Kim KH. The effect of tripeptide-copper complex on human hair growth in vitro. Archives of Pharmacal Research. 2007;30(7):834-839. ↗
  11. Mortazavi SM, Mohammadi Vadoud SA, Moghimi HR. Topically applied GHK as an anti-wrinkle peptide: Advantages, problems and prospective. BioImpacts. 2025. ↗
  12. He Q, Mazzola J, Ladiges W. The naturally occurring peptide GHK reverses age-related fibrosis by modulating myofibroblast function. Aging Pathobiology and Therapeutics. 2024. ↗
  13. Lee E, Walker C, Ayadi B. Effect of BPC-157 on Symptoms in Patients with Interstitial Cystitis: A Pilot Study. Altern Ther Health Med. 2024. ↗
  14. Bobyntsev II, Chernysheva OI, Dolgintsev ME, Smakhtin MY, Belykh AE. Anxiolytic effects of Gly-His-Lys peptide and its analogs. Bulletin of Experimental Biology and Medicine. 2015;158(6):726-728. ↗
  15. Sever'yanova LA, Dolgintsev ME. Effects of Tripeptide Gly-His-Lys in Pain-Induced Aggressive-Defensive Behavior in Rats. Bulletin of Experimental Biology and Medicine. 2017;164(2):140-143. ↗