Description
Peptide Pen Kit V5 — Latest Version, In stock
The Peptide Pen Kit V5 provides a reusable laboratory research system for working with reconstituted peptide solutions. The kit combines the latest Optimised Lifestyle Peptide Pen Injector (V5) with a sterile 3ml borosilicate glass cartridge, a pack of pen needles and a protective carry case — the core reusable pen system for a peptide research protocol.
Available to In stock. Our first V5 stock is on its way to us and is expected within around ten days. Orders are dispatched as soon as it arrives and has been checked, in the order they were placed. If you need a kit straight away, the Peptide Pen Kit V3 is in stock for immediate UK dispatch.
📦 Kit Contents
| Peptide Pen Injector (V5) | Reusable injection pen with an 80 IU dosing scale and a retracting needle that is hidden during use, with the same clear glass cartridge end as the V3. Accepts standard 3ml glass cartridges. |
| 3ml Sterile Glass Cartridge | 1 × borosilicate glass cartridge with rubber stopper, pre-sterilised for direct use in the pen system. |
| Pen Needles 31G × 6mm | 10 × ultra-fine 0.25mm sterile single-use pen needles. Standard specification for subcutaneous research injection protocols. |
| Pen Case | Protective carry case. |
Reconstitution solvent is not included.
🔬 Research System Overview
- Wider dosing scale — The V5 pen is marked to 80 IU, where the V3 is marked to 60 IU, giving a wider range on a single setting
- Hidden needle — The needle retracts into the pen, so it is hidden while the pen is in use
- Sealed cartridge system — Pre-loaded cartridges minimise contamination risk and exposure during multiple-withdrawal protocols
- 3ml capacity — Significantly greater volume than standard insulin vials; reduces reconstitution frequency in extended research protocols
- Reusable body — The pen body is designed for long-term laboratory use; only cartridges and pen needles require replacement
How the V5 works

⚙️ Technical Specifications
| Pen | V5 design, 80 IU dosing scale, retracting needle |
| Cartridge compatibility | Standard 3ml borosilicate glass (29mm × 12mm), same glass cartridge end as the V3 |
| Needles included | 31G × 6mm (0.25mm) — pack of 10 |
| Case | Protective carry case (same case as the V3 kit) |
| Colours | Gunmetal (Black), Teal, Gold, Red |
| Dispatched from | United Kingdom by Optimised Lifestyle |
| Use | Laboratory research use only |
Frequently asked questions
What is included in the Peptide Pen Kit V5?
One V5 reusable pen injector, one 3ml sterile glass cartridge, ten 31G × 6mm pen needles and a protective carry case. These are the same items as in the V3 kit, with the V5 pen.
What is the difference between the V5 kit and the V3 kit?
The pen. The V5 has an 80 IU dosing scale, where the V3 is marked to 60 IU, and a retracting needle that is hidden during use. The cartridge, needles and case are the same as in the V3 kit.
Which colours does the V5 kit come in?
The pen comes in Gunmetal (Black), Teal, Gold or Red. Colour is a preference, not a guarantee, so depending on stock you may receive an alternative colour.
When will the V5 kit be dispatched?
It is available to In stock. Our first V5 stock is expected within around ten days, and orders are dispatched in the order they were placed once it has arrived and been checked.
Can I add more cartridges or needles later?
Yes — 3ml Cartridges (Pack of 5) and Peptide Pen Needles 31G × 6mm (Pack of 10) are available individually. See our reconstitution guide for solvent preparation.
Is this kit for human use?
No. This kit is for laboratory research use only. All components are for use in controlled research environments by qualified personnel.
Individual components and guides
- How to Use Your Peptide Pen (video guide)
- Peptide Pen Injector V5 (standalone)
- Peptide Pen Kit V3
- 3ml Sterile Glass Cartridges (Pack of 5)
- Peptide Pen Needles 31G × 6mm (Pack of 10)
- Peptide Pen Case
- Peptide Cooler Bag — Keeps a loaded pen cool away from a fridge
- 4-Vial Storage Case — Protective storage for four vials
⚠️ For laboratory research use only. Not for personal or clinical use. Supplied in compliance with UK regulations governing research equipment.















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