Description
KLOW 80mg – Multi-Peptide Research Blend
KLOW 80mg is a research-grade peptide formulation supplied for controlled laboratory investigation at 99%+ purity involving peptide signaling, extracellular matrix biology, and molecular pathway analysis.
This multi-peptide formulation contains four peptides referenced in scientific literature:
• BPC-157 – 10mg
• TB-500 (Thymosin Beta-4) – 10mg
• GHK-Cu (Copper Peptide) – 50mg
• KPV – 10mg
These peptides have appeared in experimental research examining molecular pathways associated with connective tissue biology, peptide-mediated cellular communication, inflammatory signaling models, and extracellular matrix systems.
KLOW 80mg is supplied strictly for in-vitro laboratory research and analytical investigation. This compound is not approved for human or veterinary use.
What Is KLOW 80mg?
KLOW 80mg is a multi-peptide research formulation designed for laboratory environments investigating peptide interactions across multiple molecular signaling systems.
Scientific literature referencing these peptides has examined experimental models involving:
• Extracellular matrix signaling pathways
• Collagen-related molecular biology research
• Vascular signalling pathways
• Peptide-mediated inflammatory pathway models
• Connective tissue cellular signaling systems
• Peptide signaling within connective tissue research
• Extracellular matrix and collagen-related pathway analysis
• Vascular signalling systems
• Cellular migration pathway research
These topics remain areas of ongoing experimental investigation.
Peptide Components in KLOW 80mg
BPC-157 (10mg)
BPC-157 is a synthetic peptide fragment derived from a protein sequence associated with gastric peptides.
Research literature referencing BPC-157 has examined laboratory models involving:
• Peptide signaling within connective tissue systems
• Nitric oxide-related molecular pathways
• Vascular signalling mechanisms
• Cellular pathway analysis involving extracellular matrix biology
These areas remain subjects of experimental research.
TB-500 (Thymosin Beta-4) – 10mg
TB-500 is a synthetic peptide related to Thymosin Beta-4, a naturally occurring peptide found in multiple tissue types.
Scientific literature referencing Thymosin Beta-4–related peptides has examined:
• Actin regulation within cellular systems
• Cellular migration signaling pathways
• Vascular signalling models
• Peptide activity within musculoskeletal research systems
These topics represent ongoing areas of laboratory investigation.
GHK-Cu (Copper Peptide) – 50mg
GHK-Cu is a naturally occurring copper-binding peptide referenced extensively in biochemical and molecular research.
Published studies involving GHK-Cu have examined:
• Copper-peptide interactions within biological systems
• Collagen-related signaling pathways
• Gene expression associated with extracellular matrix biology
• Oxidative and inflammatory signaling models
The concentration of GHK-Cu within KLOW 80mg may allow researchers to investigate copper-peptide signaling within controlled laboratory environments.
KPV (10mg)
KPV is a tripeptide fragment derived from α-melanocyte-stimulating hormone (α-MSH).
Research literature referencing KPV has examined experimental models involving:
• Cytokine-related signaling pathways
• Peptide activity within epithelial cellular systems
• Molecular pathways associated with inflammatory signaling
• Peptide interactions within gut-associated cellular research models
These topics remain areas of ongoing experimental investigation.
Verifying a four-peptide blend
A blend is harder to check than a single peptide, and KLOW is a good example of why. Its four components differ widely in size, are present in unequal amounts, and one of them is a metal complex. A certificate for a blend is only useful if it deals with each of these.
- Unequal proportions. By weight, GHK-Cu makes up 50 of the 80 mg, or 62.5% of the vial; BPC-157, TB-500 and KPV are 12.5% each. On a chromatogram the GHK peak dominates, so a small impurity in one of the minor components can sit close to the detection limit. Each component should be quantified against its own reference, not read off as a share of total peak area.
- Two near-identical masses. GHK (Gly-His-Lys, 340.4 g/mol as the free peptide) and KPV (Lys-Pro-Val, 342.4 g/mol) differ by only 2 Da. A low-resolution mass check can confuse them; chromatographic separation, or accurate mass, tells them apart.
- The copper complex does not survive every method. GHK binds copper(II) tightly at neutral pH, which is what gives GHK-Cu its blue colour. The acidic mobile phases used in reversed-phase HPLC strip the copper, so the chromatogram shows free GHK. Confirming the copper itself needs a separate measurement, such as the complex’s visible absorbance or elemental analysis.
- Large and small in one run. BPC-157 is a 15-residue peptide of about 1,419 g/mol; KPV and GHK are tripeptides. A single gradient has to retain the small, polar tripeptides and still elute the larger chains, which is a real method-development constraint.
Our guide to reading a certificate of analysis covers what to look for on any report, and the third-party result for this batch is published on this page.
Questions researchers ask about KLOW
Why use a blend rather than four separate vials? A blend fixes the ratio between components and removes four separate reconstitutions as a source of error. The trade-off is flexibility: the ratio cannot be changed, and no component can be studied on its own from the same vial.
How does KLOW differ from GLOW? Both are fixed-ratio blends built around GHK-Cu. KLOW adds KPV, the C-terminal tripeptide of alpha-melanocyte-stimulating hormone (α-MSH residues 11-13), to the BPC-157, TB-500 and GHK-Cu combination.
Does the blend change how it should be stored? Store the lyophilised vial sealed, dry and cold, like any peptide. Once reconstituted, the least stable component limits how long the whole solution is usable, so prepare single-use aliquots.
KLOW 80mg – Research Supply Specifications
• Multi-peptide research formulation
• Total peptide content: 80mg lyophilized powder
• Composition:
10mg BPC-157
10mg TB-500
50mg GHK-Cu
10mg KPV
• Analytical purity standard: 99%+
• Third-party laboratory testing for identity and purity
• Manufactured under controlled quality standards
• Canada-based fulfillment
• Batch-level quality verification
Purity & Quality Assurance
ExoLabz provides research peptides manufactured to high analytical standards. ExoLabz products undergo independent third-party testing to verify peptide identity and purity. Results are published on this site.
Researchers may conduct additional analytical verification if required for laboratory use. If validated testing confirms a verified purity discrepancy, ExoLabz provides refund and testing reimbursement in accordance with company policy.
Important Legal Notice
For Research Purposes Only
KLOW 80mg is supplied strictly for laboratory research and analytical use.
This compound is not intended for human consumption, veterinary use, clinical research involving human subjects, therapeutic use, or diagnostic applications.
This product has not been evaluated or approved by Health Canada, the U.S. Food and Drug Administration (FDA), or any other regulatory authority.
By purchasing this product, the buyer confirms that the material will be handled only by qualified professionals and used solely for lawful laboratory research purposes.
Compound identity and specification
KLOW 80mg is a blend, so identity is given per component. Each formula, mass and registry number below is verified against PubChem and can be looked up directly.
| Component | Sequence | Formula | Mass (g/mol) | CAS |
|---|---|---|---|---|
| BPC-157 CID 9941957 | Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val (GEPPPGKPADDAGLV) | C62H98N16O22 | 1419.5 | 137525-51-0 |
| TB-500 CID 62707662 | Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln (acetylated LKKTETQ, the thymosin beta-4 17-23 region) | C38H68N10O14 | 889.0 | 885340-08-9 |
| GHK-Cu CID 73587 | Gly-His-Lys, supplied as the copper(II) complex | C14H24N6O4 (free tripeptide); C14H23CuN6O4 as the copper complex | 340.38 free tripeptide; 402.92 as the copper complex | 49557-75-7 (GHK); 89030-95-5 (copper tripeptide-1) |
| KPV CID 125672 | Lys-Pro-Val | C16H30N4O4 | 342.43 | 67727-97-3 |
| Total peptide content | 80 mg total — BPC-157 10 mg, TB-500 10 mg, GHK-Cu 50 mg and KPV 10 mg |
|---|---|
| Physical form | Lyophilised powder in a sealed vial |
| Analysis | Third-party HPLC; the result for this product is published on this page |
| Supplied for | Laboratory research use only |
Analytical note — BPC-157. A pentadecapeptide with three consecutive prolines. Proline-rich sequences broaden on reverse-phase HPLC because the bond preceding each proline interconverts between cis and trans conformations slowly relative to the run, so a broad or shouldered peak is a property of the molecule rather than evidence of a second substance.
Analytical note — TB-500. TB-500 is the short acetylated fragment, not full-length thymosin beta-4, which is a 43-residue protein of about 4,963 g/mol. The two are routinely conflated. A mass near 889 confirms the fragment; a mass near 4,963 would be a different product entirely.
Analytical note — GHK-Cu. This is a metal complex, not a plain peptide, and it behaves accordingly: the copper can dissociate on-column under acidic reverse-phase conditions, so an analysis may report the free tripeptide rather than the complex. Two CAS numbers circulate because one belongs to the peptide and one to the complex; both are given above rather than merged.
Analytical note — KPV. A tripeptide corresponding to the C-terminal tripeptide of alpha-MSH. It is small, basic and very polar, so it retains weakly on C18 and elutes early where salts and polar synthesis residues also appear; the gradient matters more than for a longer peptide.
Identity references The molecular formula, molecular mass and CAS registry number above are taken from the PubChem record linked in the table, not from a supplier datasheet, so every figure can be checked against an independent source in one click. Sequences are given as reported in the peptide literature, in the one-letter or three-letter convention as appropriate, with any non-standard residue named in full. Where a compound exists in more than one form — a free peptide and a metal complex, a fragment and its parent protein, a modified and an unmodified analog — the form supplied is the one identified here, and the mass on the certificate of analysis is what distinguishes it.
Research Literature
Peer-reviewed studies involving this compound and its class. All findings listed are from in vitro, cell culture or animal models and are provided for scientific reference only. This product is supplied for laboratory research and is not approved for human consumption, clinical, or veterinary use.
- Chang CH, et al. J Appl Physiol. 2011;110(3):774-780. In rat Achilles tendon explant culture and isolated tendon fibroblasts, measured explant outgrowth, fibroblast survival under oxidative stress, migration, and FAK/paxillin phosphorylation. Source · PMID 21030672
- Hsieh MJ, et al. J Mol Med (Berl). 2017;95(3):323-333. In chick chorioallantoic membrane assay, a rat hind-limb ischaemia model and human endothelial cell culture, measured vessel density, endothelial tube formation and VEGFR2-Akt-eNOS phosphorylation. Source · PMID 27847966
- Chang CH, et al. Molecules. 2014;19(11):19066-19077. In primary tendon fibroblasts from Sprague-Dawley rat Achilles tendon, measured growth hormone receptor mRNA and protein levels, PCNA expression and JAK2 phosphorylation. Source · PMID 25415472
- Bock-Marquette I, et al. Nature. 2004;432(7016):466-472. In embryonic mouse cardiomyocyte and endothelial culture and a mouse coronary artery ligation model, measured cell migration, myocyte survival and ILK/Akt kinase activity. Source · PMID 15565145
- Malinda KM, et al. FASEB J. 1997;11(6):474-481. In human umbilical vein endothelial cell (HUVEC) culture, measured directional chemotactic migration in Boyden-chamber assays. Source · PMID 9194528
- Philp D, et al. FASEB J. 2003;17(14):2103-2105. In HUVEC culture and chick aortic arch explants, measured migration, adhesion and vessel sprouting elicited by the LKKTETQ actin-binding motif at approximately 50 nM. Source · PMID 14500546
- Maquart FX, et al. FEBS Lett. 1988;238(2):343-346. In cultured fibroblasts, measured collagen synthesis rates in response to the GHK-Cu2+ complex. Source · PMID 3169264
- Simeon A, et al. Life Sci. 2000;67(18):2257-2265. In fibroblast culture, measured matrix metalloproteinase-2 expression and activity by zymography after GHK-Cu2+ exposure. Source · PMID 11045606
- Simeon A, et al. J Invest Dermatol. 2000;115(6):962-968. In rat dermal fibroblast culture and a rodent in vivo model, measured glycosaminoglycan levels and decorin and biglycan mRNA. Source · PMID 11121126
- Dalmasso G, et al. Gastroenterology. 2008;134(1):166-178. In Caco2-BBE and HT29-Cl.19A intestinal epithelial cells and murine colitis models, measured PepT1-mediated uptake kinetics, NF-kB activation and cytokine secretion. Source · PMID 18061177
- Cutuli M, et al. J Leukoc Biol. 2000;67(2):233-239. In broth and agar antimicrobial assays against Staphylococcus aureus and Candida albicans, measured colony-forming unit inhibition and microbial cAMP changes. Source · PMID 10670585
Literature notes: The published base for this compound is small and concentrated in a limited number of research groups, with little independent replication of in vivo findings. Published work concerns full-length thymosin beta-4 or its LKKTETQ actin-binding fragment. Equivalence between those and material marketed as TB-500 is not established in the literature. The published base is narrow and concentrated in gastrointestinal inflammation models.
The third-party report for this material is published on this page, and every certificate we hold is collected on the certificates of analysis page.
Related Research Compounds
Browse more compounds in Multi-Peptide Blends, or view the full research peptide catalogue.




BPC-157 10mg
NAD+ 1000mg
MOTS-c 10mg
Earl (verified owner) –
Arrived as described. Perfect communication.
Earl (verified owner) –
All documentation was clear. The product was as described and communication was top notch.