For Research Use Only · Not For Human or Veterinary Use · Not FDA-Approved

RT3 – LY3437943

Vial size

RT3 – LY3437943 — independently assayed, batch-tested, and shipped from our fulfillment facility in San Antonio. Released only after an independent laboratory returns its results for the batch.

Select your pack size

Single

$74.99

$74.99 / vial

3-Pack

$213.72

$213.72 / vial

Save $11.25

6-Pack

$404.95

$404.95 / vial

Save $44.99

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— About this compound

RT3 – LY3437943

Retatrutide (research code LY3437943) is a single-molecule triple agonist that activates the GIP receptor, the GLP-1 receptor, and the glucagon receptor. The triple-incretin pharmacology represents an attempt to combine the insulin-sensitizing and appetite-modulating effects of GLP-1/GIP agonism with the energy-expenditure effects of glucagon receptor activation.

 

The compound is currently in late-stage clinical investigation for obesity and type 2 diabetes. Public literature is concentrated in Phase 1–2 trial reports and preclinical pharmacology.

— Mechanism

How it's been studied

Picomolar-affinity agonist at GIP, GLP-1, and glucagon receptors. The balanced triple-agonist profile is hypothesized to combine glycemic control (GLP-1/GIP) with increased energy expenditure (glucagon) in metabolic research models.

—  How it’s made

From compound to your shelf

Every Nexa batch follows the same documented path. Five steps, every one verifiable.

01

Sourcing

Compound starts as a research-grade API.

Active pharmaceutical ingredient sourced from FDA-registered manufacturers. Identity confirmed against reference standard before any compounding begins.

02

Compounding

Sterile-filled in a US cleanroom.

Lyophilized in a cleanroom at our US facility. The powder format gives ≥24 months sealed stability — no cold-chain shipping required.

03

Verification

Every batch HPLC-tested.

Reverse-phase HPLC-UV (UV/MS for higher-MW peptides) confirms identity and purity for every batch before it leaves the lab. The chromatogram is archived.

04

Release

The batch is released against an independent assay.

No batch ships until an independent laboratory has returned its identity and purity results and the certificate is published in the COA library.

05

Dispatch

Ships from San Antonio in 48 hours.

Sealed vials with a QR code on the label that opens the COA library. Order before 2pm CT Monday–Thursday for same-day dispatch. UPS Ground, tracked + insured.