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Widely studied · earlier-stage evidence

Retatrutide

Triple-receptor agonist (GLP-1 + GIP + glucagon) · the most-discussed compound in current metabolic research. Lyophilized powder. For laboratory and educational research use only.

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$140
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Lyophilized, sealed vial Handling guide included
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Research use onlySupplied for laboratory and educational research. Not for human or veterinary use.
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Third-party-tested handlingSourcing and storage standards documented for transparency.
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Secure checkoutEncrypted payment processing on every order.
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Ships from the USATracked, protected packaging with order updates.
Overview
Research handling
References

Retatrutide is a synthetic peptide studied as a triple agonist of the GLP-1, GIP, and glucagon receptors. In published research it is examined for effects on metabolic measures in study models; its evidence base is earlier-stage than single- or dual-agonist peptides. Discussion of this compound is for laboratory and educational research only · it is not approved for human or veterinary use.

What makes it distinct

Where semaglutide engages one receptor pathway and tirzepatide two, retatrutide engages three. Adding receptor targets has, in the literature, generally been associated with broader metabolic effects in study models.

Researchers also compare

About this compound

Retatrutide in research

Retatrutide (also referenced as LY3437943) is a synthetic peptide studied as a triple-receptor agonist · it engages the GLP-1, GIP, and glucagon receptors. It is one of the most-discussed compounds in current metabolic research, and it is supplied here strictly for laboratory and educational research.

What the research explores

A published phase 2 trial reported dose-dependent body-weight reductions over 48 weeks in study participants [1], and a phase 2a substudy examined effects on liver-fat measures [2]. Compared with single- and dual-agonist peptides, retatrutide's evidence base is earlier-stage, so researchers tend to treat findings as promising but less mature.

Why the triple-agonist mechanism matters

Where semaglutide activates one receptor pathway and tirzepatide two, retatrutide activates three. In the literature, engaging additional receptor pathways has generally been associated with broader metabolic effects in study models · the reason this compound draws so much research attention.

Research handling at a glance

ClassSynthetic peptide
ReceptorsGLP-1 + GIP + glucagon
FormLyophilized powder
ReconstitutionBacteriostatic water
StorageFrozen (dry) / refrigerated once mixed
Research stageEmerging / earlier-phase

For laboratory and educational research only. Not approved for human or veterinary use. Nothing here is medical advice.

Quality & handling

How we handle quality

We do not publish efficacy claims. We document the handling chain so you can evaluate sourcing and condition for yourself.

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Sourcing transparency

Each compound is described by class, sequence reference, and form. We document supplier handling and identity-reference practices rather than make performance claims.

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Storage chain

Lyophilized material is held dry and cold through receiving and fulfillment to protect integrity, with handling notes provided for storage after it reaches your lab.

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Lot & handling records

Inventory is tracked by lot so receiving condition and handling history can be referenced. Third-party-tested handling standards are part of our transparency posture.

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Packaging integrity

Vials are sealed and shipped in protected packaging built to arrive intact. Report any packaging concern and we will review the lot record.

Transparency information about handling and sourcing. Not an efficacy claim. For laboratory and educational research only.

Verified buyers

What researchers say about handling

Reviews cover shipping, packaging, and solubility on arrival only. We do not publish comments about effects.

D. Okafor Verified buyer★★★★★

Vial arrived sealed and intact with no cracks in the packaging. Powder went fully into solution with bacteriostatic water, no visible residue.

On: packaging & solubility
R. Marsh Verified buyer★★★★★

Fast shipping, tracked the whole way, and it was packed cold. Reconstituted clear with no clumping. Handling guide in the box was a nice touch.

On: shipping speed & condition
S. Patel Verified buyer★★★★☆

Outer box was a little dented in transit but the vial and seal were fine. Lot and handling info were clear. Dissolved cleanly.

On: packaging integrity
J. Lindqvist Verified buyer★★★★★

Consistent vial fill and a clean seal. Went into solution quickly and stayed clear in refrigerated storage over the week I checked.

On: solubility & storage

Reviews are moderated before publication. Comments about effects, outcomes, or human use are not published. Verified-buyer status reflects a confirmed order.

FAQ

Retatrutide questions

Is retatrutide stronger than tirzepatide?
In published study models, the triple-agonist mechanism has been associated with larger metabolic effects than dual or single agonists · but retatrutide's research base is earlier-stage, so mature head-to-head comparisons remain limited.
Single vs dual vs triple agonist · what's the difference?
It's how many receptor pathways the peptide activates: semaglutide (GLP-1), tirzepatide (GLP-1 + GIP), retatrutide (GLP-1 + GIP + glucagon).
How is it supplied and stored?
As a lyophilized powder. Kept frozen and dry it is most stable; once reconstituted with bacteriostatic water it is refrigerated and used within a limited window.
Is this approved for human use?
No · it is supplied strictly for laboratory and educational research and must not be used in humans or animals.
Retatrutide$140