

Retatrutide pen
Pre-filled pens · single pen
Strength
Buy more, save more applies per product
Lab report · current batch
All reportsResearch overview
This pre-filled pen holds a declared 40 mg of retatrutide in a ready-made solution inside a sealed cartridge. Retatrutide is the investigational triple agonist of the GIP, GLP-1 and glucagon receptors, carrying a fatty-acid modification that binds albumin.
The pen suits research designs that need a prepared solution of a larger amount. Solutions are less stable than lyophilized powder, so follow the storage directions on this page. For your own concentrations or longer storage, retatrutide is also available in several vial sizes. Read our retatrutide research overview for the published phase 2 data.
Further reading: Retatrutide research: the GIP, GLP-1 and glucagon triple agonist
Product details
A pre-filled pen containing a declared 40 mg of retatrutide, an investigational GLP-1, GIP and glucagon receptor agonist. Supplied as a laboratory research material.
| Form | Pre-filled pen |
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Storage & handling
Keep the pen refrigerated at 2-8 °C, closed and protected from light. Handle according to your laboratory's procedures.
Shipping
Every order ships free with tracked delivery. You'll see the delivery options and estimated times at checkout, and get a tracking number and a tracking page when your order ships. Availability depends on your shipping destination.
Questions
How much retatrutide is in the pen?
A declared 40 mg in solution.
Is retatrutide available as powder?
Yes, in lyophilized vials of several sizes on the retatrutide page.
What's in the pen?
Retatrutide pen at the strength you choose. No diluent or accessories are included.
Can I check the lab report for my pen?
Yes. The batch number on your pen matches a report on this page or in our lab report library, with a link to verify it on the lab's website where available.
Is this product for human use?
No. It's sold for laboratory research use only and isn't for human or veterinary use.
Previous batches
- No earlier batches published for this strength.




