Research Applications: Metabolic & GLP-1 Pathways

If you’re researching GLP-1 receptor agonism, the spec is the variable that matters. The molecule has to be what the label says, at the purity the label claims, every lot. Below is what we carry, how we think about it, and what to look at before you order anything — from us or anyone else.

What this page is for

GLP-1, GIP, and glucagon receptor research has been the most active corner of metabolic peptide work for several years now. The catalog at most research-supply vendors reflects that: GLP family compounds, amylin analogs, lipolysis fragments, and the GH-axis adjacents that show up in related study designs.

This page is the short version of what’s in CoMo’s metabolic catalog, what each compound is studied for in research contexts, and what to check on a COA before you commit to a vendor. It’s not a buying guide — it’s a reference for a researcher deciding which catalog to work from.

For broader catalog reading, the Quality Promise covers our operational floor, and How to read a COA covers the document side. Both apply to everything below.

The GLP family at a glance

The GLP-receptor agonist class is named confusingly across the research-supply market. A few notes that save time:

Single-receptor GLP-1 agonists — older-generation compounds (semaglutide-class). Bind primarily to the GLP-1 receptor.
Dual-receptor agonists — bind both GLP-1 and GIP receptors. The most-studied class in current metabolic research.
Triagonists — bind GLP-1, GIP, and glucagon receptors. Newer class; published research is still expanding.

Different vendors use different naming conventions for the same molecules. To avoid mismatches when comparing catalogs, here’s how the brand-code names on our product pages map to the molecules themselves:

GLP2 / TZ — dual GLP-1 / GIP receptor agonist research compound
GLP3 / RT — GLP-1 / GIP / glucagon triagonist research compound

Always check the COA against the molecule’s calculated mass before you assume the label is right — at any vendor.

CoMo’s metabolic research catalog

Every compound listed here is in current stock. Click through for sizes, current pricing, and the per-batch COA.

GLP2 / TZ — Dual GLP-1 / GIP receptor agonist. Used in research models studying incretin receptor co-agonism, insulin secretion pathways, and adipose tissue regulation. The dual-agonist class is where most of the current GLP-receptor literature sits.

GLP3 / RT — GLP-1 / GIP / glucagon triple receptor agonist. Newer-class triagonist studied in research extending dual-agonist work into glucagon-receptor signaling. The published literature is still expanding; researchers running dose-response studies often want a range of sizes.

Cagrilintide — Long-acting amylin analog. Commonly studied alongside GLP-receptor agonists in research models examining additive or synergistic effects on satiety pathways and gastric motility.

AOD-9604 — Modified C-terminal fragment of human growth hormone. Studied in lipolysis pathway research and adipose tissue models. Distinct mechanism from the GLP-receptor class; sometimes paired in research designs comparing growth-axis vs. incretin-axis effects.

Tesamorelin — Growth hormone-releasing hormone (GHRH) analog. Used in research models studying visceral adipose tissue and the GHRH–GH–IGF-1 axis. The most-cited GHRH analog in current visceral-fat literature.

Sermorelin — Short-form GHRH analog. A foundational GH-axis research compound; often used as a methodological reference point alongside Tesamorelin in GH-secretagogue work.

5-Amino-1MQ — Small-molecule NNMT (nicotinamide N-methyltransferase) inhibitor. Studied in adipocyte differentiation models and metabolic enzymology, distinct from the peptide-receptor class but adjacent in the metabolic research literature.

KPV — Tripeptide fragment of α-MSH. Most-studied for anti-inflammatory pathways; appears in metabolic research where inflammation and metabolic regulation intersect.

If you’d rather see the whole metabolic-research slice of the catalog in grid form, the Metabolic chip on /shop/ filters down to this set.

The Metabolic Bundle

If you’re running a study that draws from the dual-agonist + amylin + lipolysis-fragment intersection, the Metabolic Bundle groups three of the most-requested compounds at a 10% discount versus buying them individually:

GLP2 / TZ
Cagrilintide
AOD-9604

The bundle exists because the three compounds get ordered together often enough that having a single-click path was simpler than asking customers to add them one at a time. It’s not a recommendation about how anyone should design a study — it’s a convenience for the way the catalog actually moves.

Why purity is the variable that matters in GLP research

Most of the published GLP-receptor work runs on the assumption that the compound under study is the compound on the label. That assumption fails quietly when synthesis is sloppy or QC is light.

A research-supply vendor’s job is to remove that variable from your study. Two specific things to look at on a COA in this class:

Identity confirmation via mass spectrometry. GLP-class compounds have well-characterized theoretical masses. The observed mass on the COA should match within a small tolerance. If the COA reports purity but skips identity, the document is incomplete.
HPLC purity threshold and methodology. ≥98% is the modern research-supply baseline. The chromatogram itself — not just the summary number — is the real data.

For the full read on what a COA should show, see How to read a COA. That page is vendor-agnostic; the standards there apply to any peptide supplier, including us.

How CoMo handles this

The same operational floor that applies to everything in the catalog applies to the metabolic line:

Every batch is HPLC-tested at ≥98% purity by a third-party lab.
Every batch gets a per-lot COA, retrievable by SKU at /certificates-of-analysis/.
The lot number on the COA matches what ships.
If a vial fails purity testing, we don’t sell the batch.

Beyond that, the rest of the CoMo Quality Promise — same-day shipping, 12-hour email response, vial-integrity replacement — applies the same way it does for the rest of the catalog.

We’re family-owned, based in Columbia, MO. We carry these compounds because the research community we work with asked for them. We’re not the only vendor doing this honestly. We just want you to be able to verify it for yourself rather than take our word for it.

Note: All CoMo Peptides products are intended for research purposes only and are not approved for human or animal consumption. All products are shipped in lyophilized form and must be reconstituted to a liquid for research and testing. We are unable to provide any dosing instructions. All products should be considered pharmaceutical grade. Per-mg or size-normalized information shown on any product page is a size-normalized value comparison only — not a dosing recommendation.