Incretin biology has moved from single-receptor agonists to engineered molecules that activate two or three receptors at once. This page compares the three classes side by side by receptor mechanism — the way they are distinguished in the research literature — using Aurevena’s catalog designations. These are engineered multi-agonist research compounds; the codes below are internal product designations and should not be read as the native peptides of similar name. Everything here describes what each class is studied for in vitro and in preclinical models — nothing on this page is dosing guidance, and none of these materials are for human or veterinary use.
New to the biology? Start with our guide to single, dual and triple incretin receptor agonists.
Comparison at a glance
| GLP-1 S | GLP-2 TZ | GLP-3 RT | |
|---|---|---|---|
| Agonism class | Single | Dual | Triple |
| Receptor targets | GLP-1R | GLP-1R + GIPR | GLP-1R + GIPR + glucagon receptor |
| Signalling axis vs. previous class | Baseline incretin axis | + GIP incretin axis | + glucagon / energy-metabolism axis |
| Primary research focus (in vitro / preclinical) | GLP-1 receptor signalling & glucose-dependent insulinotropic pathways | Combined GLP-1 / GIP incretin cross-talk | Incretin signalling plus glucagon-receptor effects on hepatic & energy metabolism |
| Stability design | Albumin-binding fatty-acid modification + protease resistance (extends half-life vs native GLP-1, t½ ≈ 2 min) | Same class of extension chemistry | Same class of extension chemistry |
| Available strengths | 10 / 20 / 30 mg | 10–60 mg | 10–60 mg |
| Format | Lyophilized, HPLC-tested, COA included | Lyophilized, HPLC-tested, COA included | Lyophilized, HPLC-tested, COA included |
| Product page | GLP-1 S | GLP-2 TZ | GLP-3 RT |
Key research differences
- Single (GLP-1 S) engages only the GLP-1 receptor — the baseline incretin axis, studied for glucose-dependent insulin-secretion signalling.
- Dual (GLP-2 TZ) adds GIP receptor agonism on top of GLP-1 — used to model combined incretin cross-talk that single agonists cannot reproduce.
- Triple (GLP-3 RT) adds glucagon receptor agonism on top of the dual incretin base — preclinical models layer hepatic and energy-expenditure signalling onto the incretin effect.
- All three are engineered for extended stability (albumin binding + protease resistance) relative to native incretin peptides, whose plasma half-life is only minutes.
What each is studied for
- GLP-1 S (single). Investigated in vitro for GLP-1 receptor binding and downstream insulinotropic signalling. See the product page and its Sources & References.
- GLP-2 TZ (dual). Studied for co-activation of GLP-1 and GIP receptors and the resulting signalling cross-talk in preclinical models.
- GLP-3 RT (triple). Studied for simultaneous GLP-1 / GIP / glucagon receptor engagement and glucagon-driven metabolic pathways in preclinical models.
Other multi-agonists in the catalog
Beyond the single→dual→triple GLP series, the Metabolic Research category also includes other engineered multi-agonists studied in this space — Survodutide and Mazdutide (studied as GLP-1 / glucagon-receptor co-agonists). Browse the full set under Metabolic Research.
Research FAQ
What is the difference between single, dual and triple incretin receptor agonists?
They differ by how many receptors they activate: a single agonist engages the GLP-1 receptor only; a dual agonist adds the GIP receptor; a triple agonist adds the glucagon receptor. Each added receptor introduces an additional signalling axis studied in preclinical models.
Which receptors does each Aurevena designation target?
GLP-1 S is studied as a GLP-1 receptor agonist; GLP-2 TZ as a GLP-1 + GIP dual agonist; GLP-3 RT as a GLP-1 + GIP + glucagon triple agonist.
Are these the branded incretin drugs?
No. GLP-1 S, GLP-2 TZ and GLP-3 RT are internal catalog designations for engineered multi-agonist research compounds and should not be read as any native or marketed peptide of similar name. Work from the mechanism and Certificate of Analysis on each product page.
What are these compounds used for?
They are supplied strictly for in-vitro and laboratory research — for studying receptor pharmacology and metabolic signalling. They are not for human or veterinary use, and this page contains no dosing or administration guidance.
How are they supplied and verified?
All are lyophilized, third-party HPLC-tested in the United States, and ship with an accessible Certificate of Analysis. See our how to read a COA and reconstitution & storage handbook.
