Research blend
KLOW Stack Pen Vial
KLOW Stack four-compound research blend pre-reconstituted as an 80mg/3ml liquid in a pen-compatible vial.
Lab report GHK-Cu component: 99% HPLC result GHK-Cu was tested standalone, not as the finished blend. View report.No reconstitution supplies needed. Bought separately for a standard vial, water, needles and wipes come to £14.
Are you sure you have these? Select them. A standard vial arrives as lyophilised powder. Bacteriostatic water, insulin needles and alcohol wipes are needed to prepare it in the laboratory. Nothing is added unless you tick it.
Add £20 more for free UK delivery · free from £100
Also available as: KLOW Stack Standard Vial (lyophilised)
Overview
KLOW Stack Pen Vial contains the same four-compound research blend — GHK-Cu, TB-500, BPC-157 and KPV at a fixed ratio — as our standard lyophilised vial, supplied pre-reconstituted in a pen-compatible cartridge format.
Supplied as a complete disposable pen kit with sterile pen tips and alcohol wipes included. No separate pen hardware or reconstitution supplies are required for laboratory handling. Supplied strictly as a research reference material; not for human or animal consumption.
Standard vial vs pen vial
For the compound background and research areas see the KLOW Stack standard vial page. The pen vial contains the same material, supplied pre-reconstituted as a complete kit.
| Format | Standard vial | Pen vial |
|---|---|---|
| Form | Lyophilised powder | Pre-reconstituted liquid |
| Volume | Powder; volume set at reconstitution | 3ml pre-filled |
| What’s included | Vial only | Disposable pen, sterile pen tips and alcohol wipes |
| Preparation | Reconstitute with bacteriostatic water | No reconstitution required |
| Storage | -20°C long-term; 2-8°C short-term | 2–8°C; do not freeze once reconstituted |
| Price | from £60 | from £80 (+£20 vs the same-strength vial) |
At a glance
- GHK-Cu component independently verified at 99% purity
- Pre-reconstituted research liquid
- UK stocked, 24–48h dispatch after payment
- Disposable pen, sterile pen tips and wipes included
Storage and handling
Supplied as a pre-reconstituted liquid in a sealed pen-compatible vial. Store at 2–8°C. Do not freeze once reconstituted. Protect from light.
Independent laboratory report
A sample of this material was submitted to Analiza Białek sp. z o.o., an independent analytical laboratory in Wrocław, Poland. We did not carry out this analysis ourselves.
This report covers the 50mg GHK-Cu component only. It was tested standalone, not as the finished blend. The report does not test the KLOW Stack's TB-500, BPC-157 or KPV components.
| Purity result | 99% |
|---|---|
| Measured content | 54.75mg (label claim 50mg, error ±0.05mg) |
| Method | RP-HPLC — BioBasic 8 (Thermo Scientific) column, linear H₂O / acetonitrile gradient with 0.1% trifluoroacetic acid, 3µl injection |
| Laboratory | Analiza Białek sp. z o.o., Wrocław, Poland |
| Report number | 100016393 |
| Analysis dates | 2026-07-28 to 2026-07-30 |
This report describes the sample submitted to the laboratory. It covers identity, purity and content only, and is not a statement of safety, efficacy or suitability for use in humans or animals.
Specification
| Composition | GHK-Cu 50mg + TB-500 10mg + BPC-157 10mg + KPV 10mg |
|---|---|
| Total peptide | 80mg per vial |
| Blend type | Four-compound tissue-research blend |
| Purity | Supplier stated |
| Form | Pre-reconstituted liquid |
| Volume | 3ml |
| Storage | 2–8°C; do not freeze once reconstituted |
Questions
What is in the KLOW Stack Pen Vial?
The same four-compound blend — GHK-Cu 50mg, TB-500 10mg, BPC-157 10mg and KPV 10mg — pre-reconstituted as an 80mg/3ml liquid in a pen-compatible vial.
How is this different from the standard vial?
The standard vial is supplied as a lyophilised powder. This version is pre-reconstituted into solution and supplied in a vial sized for pen-style research cartridge systems.
Do I need a pen separately?
No. Each pen-vial order includes a pre-filled disposable research pen, sterile pen tips and alcohol wipes. No separate pen hardware or reconstitution supplies are required for laboratory handling.
Is this for research use only?
Yes. Supplied strictly for laboratory research, not for human or animal consumption.
