The source behind each numbered claim
KLOW peptide studies you can check for yourself
Each raised number opens the study used for that claim and shows which ingredient was tested.
Each raised number takes you to its study
Each raised number on the other pages matches one study in this list. Its link opens the public record, letting you check what researchers did. The list covers KPV; GHK-Cu, which carries copper; BPC-157; and full thymosin beta-4. You won’t find a fair study of the complete KLOW blend because none exists.
Two warnings stop you from crediting one ingredient with another’s result. Thymosin beta-4 studies used the whole protein rather than the short TB-500 ingredient. One hair study used AHK-Cu, a different copper compound, and appears here only to show why its result isn’t proof for GHK-Cu. I’d keep both warnings beside any claim you’re judging.
- Malinda KM, et al. Thymosin beta4 accelerates wound healing. J Invest Dermatol. 1999;113(3):364-368. ↗
- 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. ↗
- 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. ↗
- 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. ↗
- 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. ↗
- Intra-Articular Injection of BPC 157 for Multiple Types of Knee Pain. Altern Ther Health Med. 2021. (retrospective case series, n=16). ↗
- 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. ↗
- Krivic A, et al. Achilles detachment in rat and stable gastric pentadecapeptide BPC 157: Promoted tendon-to-bone healing and opposed corticosteroid aggravation. J Orthop Res. 2006;24(5):982-989. ↗
- 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. Arch Pharm Res. 2007;30(7):834-839. (tests AHK-Cu, an analog of GHK-Cu). ↗
- Philp D, et al. Thymosin beta 4 induces hair growth via stem cell migration and differentiation. Ann N Y Acad Sci. 2007;1112:95-103. ↗
- Lee E, Burgess K. Safety of Intravenous Infusion of BPC157 in Humans: A Pilot Study. Altern Ther Health Med. 2025. ↗
- Mendias CL, Awan TM. Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance. Sports Med. 2026. ↗
- 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. Front Pharmacol. 2025;16:1551843. ↗
- Sosne G, et al. Activation of pro-resolving pathways mediate the therapeutic effects of thymosin beta-4. Front Immunol. 2024;15:1458684. ↗
- Wang L, et al. Thymosin beta4 improves the survival of cutaneous flaps of rat and activates Wnt/beta-catenin signaling. Arch Med Sci. 2024. ↗
- Ruff D, et al. A randomized, placebo-controlled, single and multiple dose study of intravenous thymosin beta4 in healthy volunteers. Ann N Y Acad Sci. 2010;1194:223-229. (full-length thymosin beta-4, not the TB-500 fragment). ↗
- Hsieh MJ, et al. Therapeutic potential of pro-angiogenic BPC157 is associated with VEGFR2 activation and up-regulation. J Mol Med (Berl). 2017;95(3):323-333. ↗
- Wang Y, et al. Pharmacokinetics, distribution, metabolism, and excretion of body-protective compound 157, a potential drug for treating various wounds, in rats and dogs. Front Pharmacol. 2022;13:1026182. ↗
- Hostynek JJ, Dreher F, Maibach HI. Human skin penetration of a copper tripeptide in vitro as a function of skin layer. Inflamm Res. 2011;60(1):79-86. ↗
- Getting SJ, Christian HC, Lam CW, et al. Dissection of the anti-inflammatory effect of the core and C-terminal (KPV) alpha-melanocyte-stimulating hormone peptides. J Pharmacol Exp Ther. 2003;306(2):631-637. ↗