Original price was: £35.00.£31.50Current price is: £31.50.
Buy peptide pen kit UK — complete reusable injector pen set including pen injector, 1× sterile glass cartridge, 10× pen needles 31G x 6mm. Everything needed for research peptide administration. UK stock.
Colour is a preference, not a guarantee — we’ll do our best to send your chosen colour, but depending on stock you may receive the pen in an alternative colour.
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The Peptide Pen Kit provides a reusable laboratory research system for working with reconstituted peptide solutions. The kit combines the Optimised Lifestyle Peptide Pen Injector (V3) with a sterile 3ml borosilicate glass cartridge and a pack of pen needles — the core reusable pen system for a peptide research protocol.
| Peptide Pen Injector (V3) | Reusable anodised aluminium injection pen with dial-in dosing mechanism. 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 — BAC water available separately →
| Pen body | Anodised aluminium, V3 design |
| Cartridge compatibility | Standard 3ml borosilicate glass (29mm × 12mm) |
| Dosing increment | 1 unit per click |
| Needle included | 31G × 6mm (0.25mm) — pack of 10 |
| Dispatched from | United Kingdom by Optimised Lifestyle |
| Use | Laboratory research use only |
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 for human use?
No. This kit is for laboratory research use only. All components are for use in controlled research environments by qualified personnel.
⚠️ For laboratory research use only. Not for personal or clinical use. Supplied in compliance with UK regulations governing research equipment.
| Colour | Gold, Green, Gunmetal (Black), Purple, Red, Silver, Teal, White |
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Steve Baxter –
Brilliant product and brilliant service. The injector pen is well engineered — precise, robust and comfortable to hold. I like that it’s reusable too, much more practical than disposables. Optimised Lifestyle shipped fast and the whole transaction was smooth from start to finish. Already recommended to a couple of training partners.
Fiona McAllister –
Good quality pen and excellent service from Optimised Lifestyle. Arrived well within the estimated delivery time, packaging was professional. The pen mechanism is smooth and the cartridges included are proper borosilicate glass. Docking 1 star only because the instructions could be more detailed, but once set up it’s very straightforward to use.
Chris Alderton –
Really impressed. The pen is solidly constructed, much sturdier than I expected at this price. Easy to assemble, straightforward to prime and the dose dial is satisfyingly precise. Optimised Lifestyle seems like a properly run business — good communication, fast shipping and quality products. This is my go-to supplier now.
Gemma Holloway –
Exactly what I was looking for. The pen kit is a great value bundle — quality injector pen plus cartridges at a fair price. Everything slots together properly, the pen grip is comfortable and dosing is easy to control. Ordered Friday afternoon and it arrived Monday. Will absolutely order again.
Daniel Forsythe –
Exceptional quality. I’ve used several pen injectors and this is the best I’ve come across at this price point. The mechanism is smooth, the dose increments are accurate, and it feels genuinely durable. Optimised Lifestyle dispatched same day and I had it next morning. Packaging was discrete and secure. Highly recommended.
Tom Hargreaves –
Third time ordering from Optimised Lifestyle and the service is consistently excellent. The injector pen is well made, easy to clean and the dose mechanism is reliable. Cartridges seat securely with no leaks. Fast delivery as always and the site is easy to navigate. These guys clearly understand their market.
Rachel Tanner –
Really pleased with the pen kit overall. Build quality is solid and it feels reassuringly precise compared to other options I’ve looked at. Delivery was quick — just under 48 hours. Only reason for 4 stars is I’d love to see a carrying case included in the kit, but that’s a minor thing. The pen itself is excellent and Optimised Lifestyle were great to deal with.
Mark O’Brien –
Top notch kit. The pen is precise and easy to use, dose dialling is smooth and the measurements are clear. Came with everything needed to get started. Customer service responded quickly when I had a question about compatibility with 3ml cartridges — confirmed same day. That kind of support makes a real difference.
Sarah Chambers –
I was a bit nervous ordering this kind of equipment online but the whole experience with Optimised Lifestyle was brilliant. Clear product description, fast dispatch and the pen kit arrived well packaged. Quality feels premium — much better than a cheaper option I tried previously. The cartridges fit perfectly and changing them is simple. Highly recommend.
James Whitfield –
Ordered on a Monday, arrived Wednesday with Royal Mail Tracked. The pen itself is really well built — solid mechanism, no wobble on the cartridge, and the dose dial clicks firmly into place. Been using it for three weeks now with zero issues. Optimised Lifestyle clearly know their stuff and the packaging was discreet and professional. Will definitely reorder when I need more cartridges.