GLP-1 & Incretin Peptides

The GLP-1 and incretin category groups research peptides that act at the incretin receptors: the GLP-1 receptor, the GIP receptor and, for some molecules, the glucagon receptor. It spans single-, dual- and triple-agonist peptides (semaglutide at GLP-1, tirzepatide at GIP and GLP-1, retatrutide at GIP, GLP-1 and glucagon), so researchers can compare how the number of receptor targets changes a peptide’s signaling profile.

Cagrilintide, an amylin analog, is listed here as well. Every peptide is supplied as a lyophilized powder at 99%+ purity, third-party tested by HPLC and mass spectrometry. For laboratory and research use only.

Compare every size: Retatrutide · Tirzepatide · Semaglutide

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About GLP-1 and incretin research peptides

Incretin research centers on three related receptors: GLP-1 (glucagon-like peptide-1), GIP (glucose-dependent insulinotropic polypeptide) and glucagon. The peptides in this category differ mainly in how many of those receptors they are built to engage. That makes them a natural set for comparative work on receptor selectivity, signaling and half-life engineering.

Compounds in this category

For side-by-side detail, see Retatrutide vs Tirzepatide vs Semaglutide and GLP-1 research peptides compared.

Choosing a vial size

Each compound comes in several vial sizes with the same material in each. Larger vials lower the cost per mg, which is shown under the size buttons on every product page.

Frequently asked questions

What is the difference between single, dual and triple agonists?

The number of incretin-family receptors a peptide is built to activate. Semaglutide targets GLP-1; tirzepatide targets GIP and GLP-1; retatrutide targets GIP, GLP-1 and glucagon.

Is cagrilintide a GLP-1 peptide?

No. Cagrilintide is an amylin analog. It sits in this category because amylin and incretin pathways are frequently studied together in metabolic research.

How are these peptides supplied?

As lyophilized powder at 99%+ purity, verified by independent HPLC and mass spectrometry, for laboratory research use only.

All compounds are supplied as lyophilized powder at 99%+ purity for laboratory research use only. Not for human or veterinary use.