Reference only. This page covers what the compound is, how it is presented and how it is handled. It does not give dosing protocols or administration schedules, and it is not medical advice.
| Pre-filled pen | Lyophilised vial | |
|---|---|---|
| Arrives as | Solution, ready | Powder, sealed |
| Preparation | None | Solvent has to be added |
| Measurement | Dial units on the pen | Read on the syringe |
| Unopened shelf life | Shorter | Longest |
| Cost driver | Filling and graduating adds cost | Lower cost to produce |
What that means for a price comparison
A pen compared against a vial on headline price alone will always look worse, because the comparison is not measuring the same thing. Cost per milligram is the figure that survives the difference.
Why buy from The PED Shop
- 1866 Trustpilot reviews, 4.99 average
- Held in UK stock, dispatched domestically
- Batch documentation on request
Review count and score are SerenQ's Trustpilot profile, read on 2026-09-08.