Our pre-filled pens are ready-prepared multi-dose research pens containing RT-GLP1, available in 10, 20, 30 and 40 mg. Needle tips are included, and every pen is sent in discreet black padded packaging.
What is a pre-filled pen?
A pre-filled pen is a reusable pen fitted with a cartridge that has already been prepared with a set amount of RT-GLP1 in solution. It arrives ready to use in the laboratory, so there is no vial to reconstitute.
What's in the pack
- Reusable pen with a pre-filled cartridge
- Needle tips
- Batch-numbered label with the expiry date
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Pre-filled Pens
RT-GLP1 Pen 10 mg
Original price was: £110.00.£79.00Current price is: £79.00.£7.90 / mg Read more -
Pre-filled Pens
RT-GLP1 Pen 20 mg
Original price was: £125.00.£89.00Current price is: £89.00.£4.45 / mg Read more -
Pre-filled Pens
RT-GLP1 Pen 30 mg
Original price was: £145.00.£99.00Current price is: £99.00.£3.30 / mg Read more -
Pre-filled Pens
RT-GLP1 Pen 40 mg
Original price was: £160.00.£109.00Current price is: £109.00.£2.73 / mg Read more
Pens and vials compared
Vials are the lowest price per mg and are supplied as a freeze-dried powder. Pens cost a little more because the cartridge is prepared for you and the pen hardware and needle tips are included. The table below shows both, with prices taken live from the shop.
| Format | Strength | Price | Price per mg |
|---|---|---|---|
| Pre-filled pen | 10 mg | £7.90 | |
| Pre-filled pen | 20 mg | £4.45 | |
| Pre-filled pen | 30 mg | £3.30 | |
| Pre-filled pen | 40 mg | £2.73 | |
| Vial | 10 mg | £4.90 | |
| Vial | 15 mg | £3.87 | |
| Vial | 20 mg | £3.25 | |
| Vial | 30 mg | £2.50 |
Prices update automatically from the shop. Research use only.
Packaging and delivery
Orders are dispatched from the UK by tracked delivery in plain, discreet black padded packaging, with no product names on the outside. See shipping & delivery.
Storage
Keep pens refrigerated at 2–8 °C and protected from light. Do not freeze.
Frequently asked questions
What comes with a pre-filled pen?
A reusable pen with a pre-filled RT-GLP1 cartridge, needle tips, and a batch-numbered label with the expiry date.
Which strengths are available?
RT-GLP1 pens are available in 10, 20, 30 and 40 mg.
How are pens packaged?
In a plain, discreet black padded envelope with no product names on the outside, sent by tracked UK delivery.
Are the pens for human use?
No. They are supplied strictly as research materials for in-vitro laboratory use. They are not medicines and are not for human or veterinary use.
