Tendon, Muscle & Connective Tissue
BPC-157 and related repair peptides are studied in preclinical tendon, muscle and bone-healing models, with human validation still limited.
Sikiric et al. 1998≥99% Purity
KLOW Blend
A four-peptide blend for full-spectrum tissue repair
$140.00$70.00/vial with BOGO
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PASSEDSterility & Endotoxins
PASSEDNet Content & Purity
Researchers also added
Authenticity
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About this compound
KLOW is a four-peptide recovery blend — GHK-Cu, TB-500, BPC-157, and KPV — researched together for full-spectrum tissue repair, from healing and blood-vessel growth to calming inflammation.
Four-peptide research blend (GHK-Cu, TB-500, BPC-157, KPV)
- Formula
- Mixture (GHK-Cu + TB-500 + BPC-157 + KPV)
- Form
- Lyophilized powder
0
Peptides Combined
GHK-Cu · TB-500 · BPC-157 · KPV
0mg
Total Peptide
Recovery & repair research blend
Multi
Pathway Coverage
Repair, angiogenesis, anti-inflammatory
0
Research Areas
Tendon, Muscle & Connective Tissue · Cell Migration & Angiogenesis · Skin, Collagen & Wound Models & more
How It Works
How KLOW Blend works
The pathways KLOW Blend acts on — and what each one does. The animation traces its signal outward from the compound to every target it engages.
Signalling pathways studied in preclinical models · illustrative
Tissue Repair & Angiogenesis
BPC-157 + TB-500
In preclinical research, BPC-157 promotes skin, tendon, muscle and bone healing through growth-factor upregulation and angiogenic signaling. TB-500 (a thymosin β-4 fragment) is studied for promoting cell migration, reducing fibrosis, and enhancing regeneration across multiple injury models.
- BPC-157: growth-factor upregulation and angiogenesis in repair models
- TB-500: actin-binding effects on cell migration and regeneration
- Both studied across tendon, muscle, cardiac and dermal injury models
Matrix & Collagen Support
GHK-Cu
GHK-Cu is a copper-binding tripeptide studied for enhancing collagen and elastin synthesis, supporting angiogenesis, and stimulating fibroblast migration — making it a frequent reference compound in extracellular-matrix and skin-repair research.
- Enhances collagen and elastin synthesis in fibroblast models
- Supports angiogenesis and fibroblast migration
- Studied for extracellular-matrix remodeling and skin repair
Inflammation Modulation
KPV
KPV, the C-terminal tripeptide of α-MSH, inhibits NF-κB and MAP-kinase inflammatory signaling at nanomolar concentrations, reducing pro-inflammatory cytokine output — adding an anti-inflammatory axis to the blend's repair-focused components.
- Inhibits NF-κB and MAP-kinase inflammatory signaling
- Reduces TNF-α, IL-6 and IL-1β in research models
- Adds an anti-inflammatory dimension to the repair blend
Uses & Applications
What KLOW Blend is researched for
The main areas KLOW Blend is being studied for — and the study-reported figures behind them.
Cell Migration & Angiogenesis
BPC-157, TB-500 and GHK-Cu are frequently used together in in-vitro and ex-vivo systems to probe endothelial activity and matrix gene expression.
Ortho Sports Med. ReviewSkin, Collagen & Wound Models
GHK-Cu is a reference compound for collagen/elastin synthesis and fibroblast research; the blend is studied in dermal-repair contexts.
Therapeutic Peptides ReviewRecovery & Repair Pharmacology
Reviews of injectable peptide therapy examine the repair-focused peptide class, its mechanisms, and the current limits of the human evidence base.
Injectable Peptide Therapy PrimerMolecular Structure
The KLOW Blend molecule
An interactive 3D model rendered from the compound record — rotate and explore its structure.
Mixture (GHK-Cu + TB-500 + BPC-157 + KPV)
Third-Party Verified
Independently tested. Verifiably pure.
Every batch of KLOW Blend is sent to an accredited independent laboratory before it ships. Here is what we screen for.
- HPLC Purity AnalysisConfirms the peptide is ≥99% pure
- Mass SpectrometryVerifies the exact molecular identity
- Heavy Metals ScreeningLead, arsenic, cadmium & mercury — Pass
- Endotoxins (LAL)Bacterial endotoxin levels — Pass
- Sterility TestingNo microbial contamination — Pass
- Net Peptide ContentActual peptide mass per vial verified
Certificate of Analysis · Freedom DiagnosticPASS
- HPLC Purity
- ≥99%
- Identity
- Mass-spec confirmed
- Endotoxin (LAL)
- Pass
- Net content
- Verified
Compound Information
Full specification
| Product Type | Four-peptide research blend |
| Component 1 | GHK-Cu 50 mg — copper-binding tripeptide |
| Component 2 | TB-500 10 mg — thymosin β-4 fragment |
| Component 3 | BPC-157 10 mg — gastric pentadecapeptide |
| Component 4 | KPV 10 mg — α-MSH C-terminal tripeptide |
| Total Peptide Content | 80 mg per vial |
| Form | Lyophilized powder |
| Purity | ≥99% (HPLC verified) |
| Testing | Third-party HPLC, Mass Spec, Endotoxin |
| Storage (Lyophilized) | -20°C for long-term stability |
| Storage (Reconstituted) | 2–8°C, use within 14 days |
| COA | Included with every order |
FAQ
Common questions about KLOW Blend
KLOW is a four-peptide research blend combining GHK-Cu (50 mg), TB-500 (10 mg), BPC-157 (10 mg) and KPV (10 mg) — 80 mg of total peptide per vial. It groups together short peptides that are individually studied in tissue-repair, regeneration and anti-inflammatory research.
BPC-157 is studied for tendon, muscle and bone healing via growth-factor signaling; TB-500 (a thymosin β-4 fragment) for cell migration and reduced fibrosis; GHK-Cu for collagen synthesis and fibroblast activity; and KPV for NF-κB-mediated anti-inflammatory effects. Together they span repair, angiogenesis, matrix support and inflammation.
Each component acts through different mechanisms relevant to tissue repair. Combining them creates a single research model that touches multiple pathways at once — angiogenesis and growth-factor signaling (BPC-157, TB-500), extracellular-matrix support (GHK-Cu), and inflammation modulation (KPV).
No. None of the four components is an FDA-approved drug for tissue-repair indications. BPC-157 specifically is not approved by the FDA or EMA, and a 2023 FDA Category 2 designation restricts injectable compounding in the United States. Research-grade KLOW is supplied strictly for in vitro laboratory research.
BPC-157, TB-500 and GHK-Cu are used in in-vitro systems, ex-vivo tissue explants and animal models to study endpoints such as endothelial-cell activity in angiogenesis assays, fibroblast-associated matrix gene expression, cell migration and wound closure. KPV is used in inflammatory-signaling research.
Lyophilized KLOW should be stored at -20°C, protected from light and moisture. Once reconstituted with bacteriostatic water, it should be kept at 2–8°C and used within approximately 14 days to preserve the integrity of all four peptides.
Published Literature
Cited Sources
Peer-reviewed literature
Independent published research indexed from PubMed and peer-reviewed journals — not Eon Peptides claims.
For Research Use Only.
Not for human or veterinary use. For in-vitro laboratory research only. These statements have not been evaluated by the FDA; this product is not intended to diagnose, treat, cure, or prevent any disease. Sold exclusively to qualified researchers and institutions.