Retatrutide GLP-3 20 mg

Retatrutide GLP-3 20 mg at a glance

Retatrutide is among the most widely discussed compounds in current peptide research. The 20 mg size is intended for longer experimental series, where a change of batch in the middle of a run is disruptive. In the 10-vial pack, the price per vial is around 30 % below the single-vial price.

Retatrutide is a synthetic peptide that is described in the scientific literature as a triple agonist at the receptors for GIP (glucose-dependent insulinotropic polypeptide), GLP-1 (glucagon-like peptide 1) and glucagon. Its sequence is derived from native GIP and carries a lipidated side chain, which the literature associates with albumin binding and an extended half-life. As the first widely published representative of the triple agonist class, Retatrutide serves in basic research as a reference compound for the study of simultaneously activated incretin and glucagon signalling pathways.

Molecular profile

• Class: synthetic, lipidated GIP-based peptide
• Mechanism described in the literature: agonism at GIP, GLP-1 and glucagon receptors
• Typical research fields: receptor pharmacology, incretin and glucagon signalling pathways, energy metabolism in cell and animal models

Key facts

• 20 mg lyophilised peptide per vial, sealed
• Packs of 1, 3, 5 or 10 vials — the larger the pack, the lower the price per vial
• Certificate of analysis for every batch
• Dispatch from Germany, free shipping on orders over €100
• For research use only

The decisive document is always the COA of the batch that is actually shipped, not a general purity figure stated on a product page.

Product details

Why a larger pack?

Two reasons. First, the price: per vial, the 10-vial pack costs around 30 % less than a single purchase. Second, the batch — wherever possible, the vials in one pack originate from the same production run, so that an experimental series does not change batch halfway through. Where a delivery does span several batches, each batch is accompanied by its own COA.

Research context

In research models, Retatrutide is examined with regard to the combined activation of GIP, GLP-1 and glucagon receptors and the cellular and metabolic signalling pathways associated with it. Published work addresses, among other topics, the receptor selectivity and balance of the molecule at the three target receptors, downstream signalling cascades in cell models, and comparative questions concerning mono-, dual- and triple agonists of the incretin class. Batch-specific identity and purity documentation, together with appropriate storage of the material, form the basis of reproducible laboratory work.

What does “GLP-3” mean?

“GLP-3” is not a hormone in its own right but a widely used informal label for the third generation of incretin-based research peptides: GLP-1 mono-agonists (for example semaglutide) were followed by dual GIP/GLP-1 agonists (for example tirzepatide), and then by Retatrutide as the triple agonist that additionally addresses the glucagon receptor. Searches for “buy GLP-3” or “GLP3 peptide” generally refer to Retatrutide as research material. The article GLP-1 to “GLP-5”: what lies behind the numbering explains how this numbering is to be understood.

Selecting a pack size

Select the pack above — 1, 3, 5 or 10 vials. The certificate of analysis of the batch can be viewed before purchase, and dispatch is discreet and from Germany. The smaller nominal quantities are also available: 5 mg, 10 mg and 15 mg, or all sizes side by side in the Retatrutide GLP-3 category.

Ordering from Peptélia

• Dispatched from Germany on the next business day
• Delivery times vary by destination
• Free shipping on orders over €100
• Bacteriostatic water for reconstitution included with every order
• Batch certificate of analysis viewable before purchase
• Discreet, unbranded packaging

Quality & documentation

Every batch ships with a batch-specific certificate of analysis (COA). Purity is determined by HPLC; identity and analytical data are provided for complete laboratory documentation.

For research use only. Not for use in or on the human body.