KLOW Research Peptide Blend
80mg Lyophilized Blend • ≥99% HPLC Purity • Ships in 1–2 Business Days • U.S. Warehouses
KLOW is a laboratory-formulated research peptide blend supplied by Nextday Peptides, combining four extensively studied research compounds — TB-500 (Thymosin Beta-4), BPC-157, GHK-Cu (Copper Tripeptide-1), and KPV (Lys-Pro-Val) — in a single 80mg lyophilized vial. Building on the GLOW blend with the addition of KPV, KLOW adds a fourth mechanistic dimension covering NF-κB pathway modulation and epithelial barrier biology research models. Each vial is independently verified to ≥99% HPLC purity with a Certificate of Analysis available on request. For scientific research use only.
Blend Specifications
| Product Name | KLOW Research Peptide Blend |
| Total Fill | 80mg lyophilized powder per vial |
| Component 1 | TB-500 (Thymosin Beta-4) — 10mg — CAS 77591-33-4 |
| Component 2 | BPC-157 (Body Protection Compound-157) — 10mg — CAS 137525-51-0 |
| Component 3 | GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper) — 50mg — CAS 49557-75-7 |
| Component 4 | KPV (Lys-Pro-Val) — 10mg — CAS 67727-97-3 |
| Form | Lyophilized powder |
| Appearance | Blue-green tinted powder (GHK-Cu copper coloration) |
| Purity | ≥99% each component (HPLC verified) |
| Storage | -20°C lyophilized; 2–8°C after reconstitution |
Component Overview
| TB-500 (10mg) | 43 amino acid synthetic peptide corresponding to Thymosin Beta-4. Studied for actin-binding properties, G-actin sequestration, and cytoskeletal remodeling in preclinical research models. CAS 77591-33-4. |
| BPC-157 (10mg) | 15 amino acid synthetic pentadecapeptide derived from human gastric juice protein. Studied for nitric oxide pathway interactions and angiogenic signaling in preclinical research models. CAS 137525-51-0. |
| GHK-Cu (50mg) | Naturally occurring copper-binding tripeptide (Gly-His-Lys·Cu²⁺). Studied for extracellular matrix signaling, copper-dependent enzymatic activity, and gene expression modulation in cellular research models. CAS 49557-75-7. |
| KPV (10mg) | Synthetic tripeptide (Lys-Pro-Val) derived from the C-terminal sequence of alpha-melanocyte-stimulating hormone (α-MSH positions 11-13). Studied for NF-κB pathway modulation and epithelial barrier biology in intestinal cell research models. CAS 67727-97-3. |
Why Research Laboratories Select KLOW
KLOW expands on the GLOW blend by adding KPV — a synthetic α-MSH C-terminal tripeptide studied for its cellular uptake via the PepT1 oligopeptide transporter and NF-κB pathway interactions in intestinal epithelial cell models. This fourth component adds an inflammatory signaling and epithelial biology dimension to the three-pathway GLOW system, giving researchers a broader multi-pathway reference tool in a single 80mg lyophilized vial.
- Four-component blend — TB-500, BPC-157, GHK-Cu, and KPV in one 80mg lyophilized vial
- KPV addition — adds NF-κB pathway modulation and epithelial barrier biology to the GLOW framework
- Multi-pathway research system — cytoskeletal, gastrointestinal peptide, copper-dependent, and inflammatory signaling studied simultaneously
- GHK-Cu at 50mg dominant concentration — suited for extracellular matrix and copper-peptide research
- TB-500, BPC-157, and KPV at 10mg each — complementary pathway coverage
- Each component independently verified to ≥99% HPLC purity
- Lyophilized format ensures stability and reproducibility across experimental runs
- Batch and lot identifiers on all labeling for full laboratory documentation compliance
Research Background
Each component of the KLOW blend has an established preclinical research literature. TB-500 (Thymosin Beta-4) has been studied in rodent and cell-based models since the 1960s. BPC-157 has been referenced extensively in gastroprotective and angiogenic signaling research since the early work of Sikiric et al. GHK-Cu was first identified in human plasma in 1973 by Loren Pickart, Ph.D. KPV has been studied in intestinal epithelial cell models for PepT1 transporter uptake and NF-κB pathway interactions, with Zhao et al. (2022) publishing findings in Acta Biomaterialia. All information provided here is for educational and reference purposes only and does not constitute medical or clinical guidance.
Reference sources: PubChem — TB-500 | PubChem — BPC-157 | PubChem — GHK-Cu
Shipping & Fulfillment
- Ships from U.S. warehouses — Florida, North Carolina, and California
- Overnight and 2-day shipping available at checkout
- Same-day processing on orders placed before 3:30 PM ET
- Discreet packaging with full tracking provided
- Bulk research orders welcome — contact us for volume pricing
Storage & Handling
- Store lyophilized blend at -20°C away from light and moisture
- After reconstitution store at 2–8°C and use promptly
- Avoid repeated freeze-thaw cycles to maintain integrity of all four components
- Note: GHK-Cu component may require acetic acid for optimal reconstitution — begin with a small volume of 0.6% acetic acid if solubility is limited
- Handle using appropriate laboratory safety protocols
- Keep containers sealed when not in use
Frequently Asked Questions
What is KLOW?
KLOW is an 80mg lyophilized research peptide blend containing TB-500 (Thymosin Beta-4) 10mg, BPC-157 10mg, GHK-Cu (Copper Tripeptide-1) 50mg, and KPV (Lys-Pro-Val) 10mg in a single vial. Supplied strictly for scientific, analytical, and in-vitro laboratory research use only.
How does KLOW differ from GLOW?
KLOW contains all three components of the GLOW blend — TB-500, BPC-157, and GHK-Cu — with the addition of KPV (Lys-Pro-Val) at 10mg. KPV adds a fourth research pathway covering NF-κB pathway modulation and epithelial barrier biology, making KLOW a more comprehensive multi-pathway research blend than GLOW.
What does each component in KLOW study?
TB-500 targets cytoskeletal actin dynamics. BPC-157 targets nitric oxide and VEGF signaling. GHK-Cu targets copper-dependent extracellular matrix signaling and gene expression. KPV targets NF-κB pathway modulation and epithelial barrier biology via PepT1 transporter uptake in intestinal cell models. Each operates through a distinct molecular mechanism.
Why does KLOW powder have a blue-green tint?
The blue-green coloration is characteristic of GHK-Cu (Copper Tripeptide-1), which naturally exhibits a blue-green color due to its copper(II) complexation. This is a normal visual property of the blend.
What purity is your KLOW blend?
Each component is independently verified to ≥99% HPLC purity. A Certificate of Analysis is available for each lot.
How fast does Nextday Peptides ship?
We ship from U.S. warehouses in Florida, North Carolina, and California. Overnight and 2-day shipping options are available. Orders placed before 3:30 PM ET are processed same day.
Are bulk orders available?
Yes. We accommodate bulk research orders. Contact us directly for volume pricing and availability.
Is this product approved for medical use?
No. This product is for laboratory research use only. It is not approved for human or veterinary use, and is not intended for diagnostic, therapeutic, or clinical applications.
What other compounds does Nextday Peptides carry?
We also carry GLOW blend, individual TB-500, BPC-157, GHK-Cu, and KPV. View our full research compounds catalog.
For Research Use Only — Not for human or veterinary consumption • Not evaluated by the FDA • Supplied by Nextday Peptides for laboratory research applications only
