Original price was: £9.00.£8.10Current price is: £8.10.
Buy sterile glass cartridge UK (pack of 5) — USP Type I borosilicate 3ml peptide pen cartridges. Pre-sterilised, compatible with all reusable peptide pen injectors. UK stock.
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Our sterile glass cartridge UK is a precision-manufactured, pre-sterilised research consumable designed for use with reusable peptide pen injectors. Manufactured from USP Type I borosilicate glass — the highest classification for pharmaceutical glass — each peptide pen cartridge UK offers exceptional chemical resistance, minimal extractables and outstanding clarity for accurate volume visualisation.
Available in packs of 5, our 3ml sterile glass cartridge UK is compatible with all standard reusable peptide pen injectors using the 3ml cartridge format. When you buy peptide cartridge UK from Optimised Lifestyle, you receive research-grade components with full UK stock availability and fast dispatch.
Not all glass is equal for research applications. USP Type I borosilicate glass — the material used in our sterile glass cartridge UK — is the internationally recognised standard for pharmaceutical and research liquid containers:
Our peptide pen cartridge UK uses the standard 3ml format, ensuring compatibility with the majority of reusable peptide pen systems. Pair with our reusable peptide pen injector UK or purchase as part of the complete peptide pen kit UK. All components are designed to work together for a seamless research experience.
To fill your peptide pen cartridge, first reconstitute your lyophilised peptide using BAC water 3ml or 10ml to your desired concentration. Our free peptide calculator handles all volume and concentration mathematics. For full technique guidance see our peptide reconstitution guide. According to ISO standards, sterile barrier systems for medical devices must maintain integrity throughout the stated shelf life — our cartridges meet applicable research quality benchmarks.
Store unfilled sterile glass cartridge UK packs at room temperature in a clean, dry environment. Once filled with reconstituted peptide solution, store at 2-8C and use within 28-30 days. Inspect each cartridge for cracks or cloudiness before use and discard any damaged units.
For research use only. Not for human or veterinary therapeutic use. Maintain aseptic technique at all times when handling sterile research consumables.
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Caroline Marsh –
Excellent. High quality glass, proper rubber seal and they fit the pen injector I bought from Optimised Lifestyle perfectly — which makes sense I suppose. Delivery was fast and discreet. I like that these are sold as a pack of 5 rather than 3, gives better value. Very happy and will definitely reorder.
Stuart Pearce –
These are now my go-to replacement cartridges. Tried a different brand previously and had issues with seal quality. These are noticeably better — proper borosilicate glass and the rubber plunger seats cleanly. Ordered from Optimised Lifestyle and had them within 48 hours. Price is fair for the quality. Reordering already.
Rachel Nicholls –
Solid cartridges. The glass is clear and uniform and the seals look properly manufactured. I had one that took a bit more effort to seat correctly but the other four were fine — hence 4 stars rather than 5, though it could just be user error. Delivery was quick and Optimised Lifestyle communicated well throughout.
Ben Forsythe –
Good quality cartridges. They are compatible with my existing pen injector without any modification needed, which I was a little worried about. The glass is clear and the rubber seal seats well. Came well packaged and arrived in two days. Fair price for a pack of 5. Would buy again.
Amanda Griffiths –
Really pleased with these. The borosilicate glass is thick and clear, no imperfections I could spot. They seat firmly in the pen with a satisfying click and held pressure perfectly throughout use. Ordered on a Tuesday and they arrived Thursday. Optimised Lifestyle packaged them carefully — no damage. Exactly as described.
Thomas Elsworth –
Fit my pen injector perfectly straight out of the pack — no leaking, no slipping. The glass quality is noticeably better than a cheaper set I bought elsewhere. Pack of 5 is a sensible quantity. Delivery from Optimised Lifestyle was tracked and arrived two days after ordering. Will be reordering when I run low.