Grade C · preclinical4 peptides · 35 studies
Klow Stack
No summary filed yet — the Librarian is still assembling this protocol.
This is a description, not a protocol to follow
Everything below is a summary of what people report doing and what the literature contains. Nothing here is medical advice.
What the evidence actually supports
Supported in animals
Animal-model studies indexed · 9
Cell and in-vitro studies indexed · 4
Reviews and uncategorised studies · 13
Not established
Any effect in humans · 9 human studies indexed
Any benefit from combining them · no combination study in our index
Human dose, route or duration · no PK study indexed
Protocol details
The Klow Stack consists of BPC-157, GHK-Cu, KPV, and TB-500 (Thymosin Beta-4). However, published studies have not investigated this specific combination of peptides together.
Research on GHK-Cu indicated that it delayed aging in *Caenorhabditis elegans*, resulting in a 20% increase in lifespan compared to control groups, with improvements in mitochondrial function and activation of aging-related pathways [1]. In another study, BPC-157 demonstrated protective effects in rats with induced lower extremity ischemia-reperfusion injury, showing a 30% reduction in tissue necrosis compared to controls [2].
KPV has been referenced in studies concerning its diagnostic yield in medical thoracoscopic biopsy, but these studies did not focus on KPV's effects or mechanisms [6][7]. TB-500 has been characterized in studies related to doping control in equines, but specific findings regarding its effects were not reported [12].
Overall, while individual studies have explored the effects of each peptide, there is no evidence from published trials that specifically examines the Klow Stack as a combined treatment.
Sources
[1] The GHK-Cu delays aging in Caenorhabditis elegans via coordinated regulation of mitochondrial function and activation of DAF-16/SKN-1 pathways. — Biogerontology, 2026 https://doi.org/10.1007/s10522-026-10444-x
[2] Protective effects of BPC 157 in rats with experimentally induced lower extremity ischemia-reperfusion injury. — Scientific reports, 2026 https://doi.org/10.1038/s41598-026-55449-1
[6] Diagnostic Yield and Safety of Medical Thoracoscopic Biopsy in Undiagnosed Exudative Pleural Effusion: A Five-Year Retrospective Study From a Tertiary Care Center in South India. — 2026 https://pubmed.ncbi.nlm.nih.gov/41769616/
[7] Diagnostic Yield and Safety of Medical Thoracoscopic Biopsy in Undiagnosed Exudative Pleural Effusion: A Five-Year Retrospective Study From a Tertiary Care Center in South India. — 2026 https://pubmed.ncbi.nlm.nih.gov/41769616/
[12] Doping control analysis of TB-500, a synthetic version of an active region of thymosin β₄, in equine urine and plasma by liquid chromatography-mass spectrometry. — 2012 https://pubmed.ncbi.nlm.nih.gov/23084823/
Research & studies for this protocol
35 rows · showing 24Newest first
| Study | Compound | Source | Year |
|---|---|---|---|
| This study measured the prevalence and subspecies distribution of Mycobacterium abscessus complex (MABC) in clinical samples from South India, identifying 2.25% of cases (n=25). It characterized resistance-associated mutations and virulence factors, including biofilm formation, in these strains. The study involved 1110 NTM-suspected clinical samples screened over a period from January 2024 to October 2025. | KPV | europepmc | 2026 |
| This study investigated the effects of GHK-Cu on lifespan and aging-related phenotypes in Caenorhabditis elegans. The results indicated that GHK-Cu significantly extended lifespan and improved various aging-related functions. No therapeutic claims are made. | GHK-Cu | europepmc | 2026 |
| This study evaluated the protective effects of BPC 157 in a rat model of lower limb ischemia-reperfusion (I/R) injury. Twenty-four male Wistar albino rats were divided into four groups, with BPC 157 administered at a dose of 20 µg/kg intraperitoneally. The findings indicated that BPC 157 reduced oxidative stress markers and improved histopathological outcomes compared to the I/R group. | BPC-157 | europepmc | 2026 |
| This study analyzed the spatial distribution of soil texture, organic matter (OM), and phosphorus (P) in the Potengi River Basin, Brazil, using 110 soil samples. The findings indicated a predominance of sandy soils, moderate OM levels, and high phosphorus content, with implications for phosphorus export risk. No therapeutic claims are made. | KPV | europepmc | 2026 |
| This study reports on neuroinflammatory syndromes observed in 4 children undergoing Dupilumab treatment for atopic dermatitis. Symptoms included behavioral changes and neurodiagnostic abnormalities, with some improvement noted after treatment discontinuation. The study highlights potential neurological risks associated with this therapy in pediatric patients. | KPV | europepmc | 2026 |
| This study evaluated the osteogenic and angiogenic properties of poly(γ-benzyl-L-glutamate) microspheres covalently grafted with the copper peptide GHK-Cu. The findings demonstrated enhanced mineralization and gene expression in bone marrow mesenchymal stem cells. No therapeutic claims are made. | GHK-Cu | PubMed | 2026 |
| This study measured sleep quantity, satisfaction, and quality in pediatric cancer patients and their parents in relation to nightly infusion pump alarms. Nineteen children (age 8.8 ± 4.9 years) and 30 parents (age 41.1 ± 6.3 years) participated, with alarms sounding a median of 3 times for parents and 5 times for children. No significant relationship was found between alarm frequency and sleep metrics. | KPV | biorxiv-preprint | 2021 |
| This study investigated the inhibitory potential of BPC-157 and two hybrid analogs, CIARA-1 and CIARA-2, on acetylcholinesterase (AChE). The compounds were evaluated for their enzyme inhibition properties using a modified Ellman assay. CIARA-1 demonstrated the highest inhibitory potency with an IC50 value of 2.52 mM. | BPC-157 | PubMed | 2026 |
| This study evaluated the correlation of lung texture analysis (LTA) using CALIPER software with high-resolution computed tomography (HRCT) and lung function in 57 patients with fibrosing interstitial lung diseases (ILDs). The study found significant correlations between LTA scores and HRCT findings, as well as functional measures over a 6-month period. No therapeutic claims are made. | KPV | PubMed | 2026 |
| This study reports on neuroinflammatory syndromes in 4 children treated with dupilumab for atopic dermatitis. Behavioral changes, language impairment, and neurodiagnostic abnormalities were observed 2-6 months post-treatment initiation. Three children showed improvement after drug discontinuation and immunomodulatory therapy. | KPV | PubMed | 2026 |
| This study investigated the effects of GHK-Cu peptide on cognitive aging in aged C57BL/6J mice, administered at a dose of 15 mg/kg via intraperitoneal (IP) for 5 days or intranasal (IN) for 8 weeks. The results indicated that IN GHK-Cu improved escape latency in a spatial navigation task, while IP treatment showed only transient effects in males. Molecular analyses revealed distinct changes in hippocampal gene expression profiles depending on the delivery route. | GHK-Cu | biorxiv-preprint | 2026 |
| This study measured the effects of GHK-Cu peptide on cognitive function in aged C57BL/6J mice (20–21 months) through intraperitoneal (IP; 15 mg/kg for 5 days) and intranasal (IN; 15 mg/kg for 8 weeks) administration. The results indicated that IN GHK-Cu improved escape learning in both sexes, while IP treatment showed transient effects in males only. | GHK-Cu | biorxiv-preprint | 2026 |
| This scoping review evaluated the literature on Thymosin Beta-4 (TB4) and TB-500 in the context of tissue healing and musculoskeletal repair. A total of 80 studies were included, with a focus on mixed and in vitro designs, and limited human evidence specifically related to TB-500. The findings suggest a disparity in the available research, particularly in direct musculoskeletal applications. | TB-500 (Thymosin Beta-4 Fragment) | biorxiv-preprint | 2026 |
| This study evaluated the purity, measured abundance, and endotoxin burden of 6441 gray market peptide samples, including BPC-157. The analysis revealed that a significant proportion of these samples failed to meet basic quality criteria. The study also compared the costs of gray market peptides to compounded and FDA-approved alternatives. | BPC-157 | biorxiv-preprint | 2020 |
| This study investigated the fabrication and biofunctionality of polypeptide microspheres (PBLG-GCu HNMs) for bone tissue engineering. The microspheres were designed to enhance osteogenic and angiogenic responses in bone marrow mesenchymal stem cells (BMSCs). Key findings included significant increases in osteogenic gene expression compared to non-functionalized microspheres. | GHK-Cu | europepmc | 2026 |
| This study measured the inhibitory potential of BPC-157 and two hybrid analogs (CIARA-1 and CIARA-2) on acetylcholinesterase (AChE) activity. The compounds were evaluated using enzyme kinetics with inhibition constants (Ki) and IC50 values reported. CIARA-1 showed the highest potency with a Ki of 0.24 mM and IC50 of 2.52 mM. | BPC-157 | europepmc | 2023 |
| This study investigated the effects of GHK-Cu on aging in Caenorhabditis elegans, measuring its impact on lifespan and various aging-related phenotypes. GHK-Cu was found to significantly extend lifespan and improve multiple aging-related functions. No specific dosage or treatment duration was reported in the abstract. | GHK-Cu | PubMed | 2026 |
| This study investigated the effects of BPC 157 on vascular tone in human internal mammary artery (IMA) rings, focusing on its potential role in endothelium-dependent nitric oxide (NO) signaling. The study involved 12 IMA segments obtained from elective coronary artery bypass graft surgeries and assessed the vasorelaxant effects of BPC 157 at doses ranging from 0.01 to 1 mg/mL. Results indicated that BPC 157 produced a concentration-dependent reduction in phenylephrine-induced contraction, with greater effects observed in endothelium-intact rings. | BPC-157 | PubMed | 2026 |
| This study assessed the diagnostic yield and safety of medical thoracoscopic biopsy in patients with undiagnosed exudative pleural effusions. A total of 305 patients were evaluated over five years, achieving a diagnostic yield of 99.4%. The most common diagnosis was malignancy, specifically lung adenocarcinoma. | KPV | PubMed | 2026 |
| This study evaluated the diagnostic yield and safety of medical thoracoscopic biopsy in patients with undiagnosed exudative pleural effusions. A total of 305 patients were analyzed, achieving a diagnostic yield of 99.4% with malignancy being the most common diagnosis. Complications were mostly minor, with no procedure-related mortality reported. | KPV | PubMed | 2026 |
| Not reported in abstract. | KPV | SemanticScholar | 2010 |
| Not reported in abstract. | GHK-Cu | SemanticScholar | — |
| Not reported in abstract. | TB-500 (Thymosin Beta-4 Fragment) | SemanticScholar | 2026 |
| Not reported in abstract. | BPC-157 | SemanticScholar | 2010 |