Research Use Only · 21+View GLP-3RT →
Triple Incretin Agonist · Research Use Only · 21+
Research-grade GLP-3RT, with the paperwork to prove it.
A synthetic triple-receptor agonist peptide studied in vitro at the GLP-1, GIP, and glucagon (GCGR) receptors, third-party HPLC and mass-spec tested with a lot-specific Certificate of Analysis. For laboratory research only.
99%+ PurityIndependent LabMade in USATracked US Shipping
The proof
Every batch, on paper.
We don’t hide behind a “3rd-party tested” badge. Every order ships with the lot-specific Certificate of Analysis for the exact vial you receive — independently run and verifiable by batch ID.
99%+
Purity
Confirmed by MS
Identity
Independent · ISO 17025
Lab
HPLC + mass spec
Method
What it is
A triple incretin agonist, studied in the lab.
GLP-3RT (also referred to in the research literature as retatrutide, or LY3437943) is a synthetic single-chain peptide studied in vitro as a triple agonist of three incretin-family receptors: the GLP-1 receptor, the GIP receptor, and the glucagon receptor (GCGR). Research characterization focuses on receptor binding and downstream cAMP signaling across the three targets. Supplied as a lyophilized powder for laboratory research — not for human or veterinary use, and not a drug or dietary supplement.
- Class
- Triple incretin-receptor agonist
- Receptors
- GLP-1R · GIP-R · GCGR
- Form
- Lyophilized powder
- Storage
- −20°C, protect from light
Why researchers order from Ascension
Bought on the paperwork, not the hype.
A COA for every batch
Lot-specific HPLC + mass-spec report, shipped with the order and verifiable by batch ID.
Independent third-party testing
Purity by RP-HPLC and identity by mass spectrometry — through an ISO 17025 lab, not in-house.
Responsive US support
Real people, US-based, who answer batch and documentation questions before you order.
Tracked US shipping
Fast domestic dispatch with tracking on qualifying orders.
Consistent stock
Reliably in stock, so a research protocol isn't waiting on a restock.
Made in the USA
Synthesized and handled to a documented, repeatable standard.
Questions
What researchers ask.
Is GLP-3RT third-party tested?
Yes. Every batch ships with a lot-specific Certificate of Analysis — purity by RP-HPLC and identity by mass spectrometry from an independent ISO 17025 laboratory, verifiable by batch ID.
What is GLP-3RT?
GLP-3RT is a synthetic triple incretin-receptor agonist peptide studied in vitro at the GLP-1, GIP, and glucagon receptors. In the research literature it is also referred to as retatrutide (LY3437943). It is supplied strictly for laboratory research.
What receptors does GLP-3RT target?
In receptor-binding and cAMP-signaling assays it acts as an agonist at three incretin-family receptors: the GLP-1 receptor, the GIP receptor, and the glucagon (GCGR) receptor. The GLP-3RT vs Tirzepatide comparison covers how the receptor profiles differ.
Is GLP-3RT for human or veterinary use?
No. It is for laboratory and research use only — not for human or veterinary use, and not a drug or dietary supplement. You must be 21 or older to purchase.
More research compounds
Building a protocol? Start here.
Dual agonistTirzepatideA dual GIP/GLP-1 receptor agonist studied in vitro for incretin-receptor signaling.View Tirzepatide →CompareTirzepatide vs GLP-3RTDual vs triple incretin-receptor targeting, side by side, as a research characterization.View Tirzepatide vs GLP-3RT →ConceptTriple AgonistWhat a triple incretin-receptor agonist is, in receptor-pharmacology terms.View Triple Agonist →
Compliance
For laboratory and research use only. You must be 21 or older to purchase. Not for human or veterinary consumption. These products are not drugs or dietary supplements and are not intended to diagnose, treat, cure, or prevent any disease. Statements on this page have not been evaluated by the U.S. Food and Drug Administration. Ascension Labs is a chemical supplier, not a compounding pharmacy.