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Retatrutide research peptidePictured: 10 mg

Retatrutide

Incretin & amylin analogs · lyophilized powder

99.67% HPLC purityBatch-tested by ElementrixResearch use only
$69.99per vial

Strength

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Lab report · current batch

All reports
Retatrutide · 5 mgBatch GLP-260612-E1 · Tested Aug 5, 2026
99.67%HPLC purity
  • Identity (LC-MS)Confirmed
  • SterilityNo growth
  • Endotoxin (LAL)0.09 EU/mL
  • Heavy metals (ICP-MS)< 0.1 ppm
Research overview

Retatrutide (LY3437943) is an investigational synthetic peptide that activates three receptors: GIP, GLP-1 and glucagon. In cell assays it shows balanced glucagon and GLP-1 receptor activity with stronger GIP receptor activity, and a fatty-acid modification binds it to albumin for a long half-life.

It is a reference material for receptor-pharmacology research on multi-receptor agonism, energy expenditure and liver fat, and it is one of the most closely followed molecules in metabolic research, with phase 2 trials published and phase 3 trials under way. Albumin in culture media lowers its free concentration in vitro. Read our retatrutide research overview for the published data.

Further reading: Retatrutide research: the GIP, GLP-1 and glucagon triple agonist · Tirzepatide vs semaglutide: molecules, mechanisms and head-to-head trials

Product details

Retatrutide is an investigational peptide agonist of the GLP-1, GIP and glucagon receptors. It is supplied as a reference material for receptor-pharmacology research.

FormLyophilized powder, sealed vial
Storage & handling

Keep unopened vials sealed, dry and protected from light at −20 °C for long-term storage. Short-term storage at 2-8 °C is acceptable. 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

Which receptors does retatrutide activate?

The GIP, GLP-1 and glucagon receptors, which is why it is called a triple agonist.

Is retatrutide available in a pen?

Yes. The retatrutide pen holds a declared 40 mg in a ready-made solution.

What's in the vial?

Retatrutide at the strength you choose. No diluent or accessories are included.

Can I check the lab report for my vial?

Yes. The batch number on your vial 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.
5 mg$69.99
1
For laboratory research use only. Not for human or veterinary use. You must be 21 or older to order.