Presented by PAY FIT
Retatrutide 40 mg · multi-dose pen
The pen holds 40 mg of retatrutide in 3 mL of solution. The solution arrives ready from the factory, so the person prepares nothing: they fit a new needle, select the setting in the window and follow the guidance of their healthcare professional.
- PrefilledThe solution is filled at the plant. There is no powder and no separate diluent.
- Fixed concentration40 mg in 3 mL: 13.33 mg per millilitre, the same in every unit.
- Reading in the windowThe pen’s window shows the selected setting.
- VerifiableBatch number, seal and verification code on the box.
Specifications
| Active ingredient | Retatrutide |
|---|---|
| Concentration | 40 mg in 3 mL · 13.33 mg per mL |
| Presentation | Prefilled multi-dose pen |
| Route stated on the label | Subcutaneous |
| Needles included | 4 of 3.0 mm |
| Storage | Refrigerated, between 2 and 8 °C |
| Shelf life stated by the manufacturer | 24 months |
Data taken from the manufacturer’s label and packaging.
What is in the box
- 1 multi-dose retatrutide pen, 40 mg / 3 mL
- 4 subcutaneous needles of 3.0 mm
- Batch number and expiry date printed on the box
- Security seal and verification code
Three receptors, one molecule
Retatrutide is a peptide designed to activate three receptors at once. Adding the glucagon receptor to those of GLP‑1 and GIP is what sets it apart from earlier analogues.
Trial results are averages for groups of participants and do not predict what will happen to an individual. What is right for each case is decided by a healthcare professional.
The full research briefing
The science behind retatrutide and the multi-dose pen, explained in detail in a separate briefing. Opens in a new tab.
Certificate of analysis
Ask for the certificate of the batch shown on your box, or see the published active-ingredient certificate (batch R20260318).
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Reading the label with confidence: milligrams, millilitres and concentration
What milligrams, millilitres and concentration mean, why 40 mg in 3 mL gives 13.33 mg/mL, and what the batch number, expiry date and verification code on the box are for.
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The multi-dose pen: parts, checks and care worth knowing about
What each part of a multi-dose pen does, what to check before opening the box and before each use, which safety habits matter, and how to keep the pen in the refrigerator between uses.
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Cold, light and time: how to keep your pen in good condition
Refrigerator at 2 to 8 °C, away from light and heat, never frozen or shaken. Why the peptide is delicate, what takes its potency away, how to look after it at home and when travelling, and what to do if it was left out.
Read articleWant more information about the pen?
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