Tirzepatide is a synthetic peptide that acts on two incretin receptors at once — GIP and GLP-1 — making it a “dual agonist.” It is widely studied in metabolic research. The molecule is the basis of FDA-approved medications, but material sold here is research-use-only — not for human use.
- Class: dual GIP / GLP-1 receptor agonist (incretin class).
- Structure: a 39-amino-acid synthetic peptide with a fatty-acid chain for a long half-life.
- Studied for: insulin signaling, glucose handling and energy balance — in research and clinical trials.
- Status: the molecule underlies approved drugs; research-grade material is for laboratory use only.
What is Tirzepatide?
Tirzepatide is an engineered peptide based on the GIP hormone sequence, modified so it activates both the GIP and GLP-1 receptors. A fatty-acid (C20 diacid) chain lets it bind albumin in the bloodstream, which extends its half-life and is why the clinical forms are dosed weekly.
| Class | Dual incretin receptor agonist (GIP + GLP-1) |
| Structure | 39-amino-acid synthetic peptide, fatty-acid modified |
| Targets | GIP receptor and GLP-1 receptor |
| Research areas | Insulin signaling, glucose metabolism, energy balance |
| Lab form | Lyophilized (freeze-dried) powder |
| Status | Research-grade material is research use only |
How it works in research
Incretins are gut hormones that influence insulin release after eating. Tirzepatide is studied because it engages two incretin pathways rather than one:
- GLP-1 receptor — the pathway targeted by single-agonist incretin peptides.
- GIP receptor — a second incretin pathway added by the dual design.
- Combined activation — the focus of comparative metabolic research.
Related compounds
Tirzepatide is often compared with the triple agonist Retatrutide, which adds a third (glucagon) receptor. See the side-by-side in Tirzepatide vs Retatrutide. New to the category? Start with What Are Research Peptides?
Storage & handling
Tirzepatide is supplied lyophilized. Keep it cold and away from light, reconstitute only when needed for research, and limit freeze–thaw cycles. See our guide on reconstituting lyophilized peptides.
Research status
The tirzepatide molecule is the active ingredient in FDA-approved prescription medications for specific medical conditions. Material sold here is research-grade and intended only for laboratory research — not for human use. Nothing here is a health claim or recommendation for use.
Looking for research-grade Tirzepatide?
Lab-tested, with third-party purity verification.