Current list pricing on 35 of 35 sizes/ $/mg published on every vial/ Free U.S. shipping at $99+; $20 below · free local fulfillment
Research use only

Metabolic & GLP research peptides

Incretin and amylin-class research material, sold cold. Identity, purity, lot certificate, price per milligram. Nothing else, on purpose.

4 compounds, 9 vial sizes, from $1.83/mg to $7.00/mg. The cheapest per milligram here is Tirzepatide.

Research use only. Not for human or veterinary use. Not a drug, food, supplement, cosmetic or medical device. Nothing on this page is medical advice.

Price per milligram across metabolic & glp

Tirzepatide 60mg
$1.83/mg
Retatrutide 60mg
$3.08/mg
Semaglutide 10mg
$5.00/mg
Cagrilintide 10mg
$7.00/mg

Effect standard list prices current as of 2026-09-30. Best per-milligram size shown for each compound.

What is in this category

Synthetic peptide agonists at the GIP, GLP-1, glucagon and amylin receptors, supplied as research material. Several are cataloged across this market under aliases rather than their generic names, so retatrutide appears as GLP-3, GLP-3 (RT) and LY3437943, and tirzepatide appears as GLP-2.

We use those aliases in copy because that is what the catalogs use, not because there is anything coy about the naming. Worth knowing: the GLP-2 alias has nothing to do with the endogenous hormone glucagon-like peptide-2, which is a different molecule entirely.

Some of these molecules have been approved somewhere as finished pharmaceuticals under sponsor brand names. That approval belongs to a product manufactured and released under a regulatory filing. It does not extend to research material, and nothing here is a substitute for an approved medicine.

Why these certificates carry more weight

These are long, heavily modified peptides. A lipidated 39-mer is a far harder synthesis than a fifteen-residue unmodified peptide, and the difficulty shows up as closely-eluting related substances in the trace.

So the chromatogram matters more here than anywhere else in the catalog, and so does an observed mass consistent with the modified parent rather than just with a peptide backbone. A bare purity percentage with no trace attached is worth less on this shelf than on any other.

Where the per-milligram gap is widest

Vial masses in this category run from 10mg to 60mg and the per-milligram price falls across that range. On retatrutide, changing vial size can move the unit price more than changing vendors. Read the size ladder before comparing stores.

What is GLP-3 RT?
A catalog alias for retatrutide, also listed as GLP-3 and LY3437943. All the same compound.
Are these approved medicines?
No. These are research materials supplied for laboratory use only. They are not approved medicines and are not substitutes for one.
Which size is cheapest per milligram?
The largest vial is the lowest per milligram within each Effect size ladder. The separate comparison page shows when another vendor still has a lower matched price.

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