Buy Retatrutide 20mg (Reta Peptide) Australia

Retatrutide 20mg is one of 7 Retatrutide vial sizes NuVion stocks in Australia. This size is $219.00, or $10.95 per mg, 15% less per milligram than the 10mg vial. See all Retatrutide sizes.

Retatrutide, often shortened to reta or reta peptide, is a synthetic 39 amino acid peptide that acts as an agonist at three class B G protein-coupled receptors: GLP-1, GIP and glucagon. NuVion stocks it in Australia as a lyophilised research material in seven vial sizes from 10mg to 60mg.

Triple agonist at the GLP-1, GIP and glucagon receptors
Reference compound for incretin and glucagon signalling assays
Supplied lyophilised, purity by RP-HPLC and identity by mass spectrometry
Independent test report published for this product

Retatrutide receptor profile

Retatrutide is a single-chain peptide carrying a C20 fatty diacid side chain. It binds and activates the GLP-1, GIP and glucagon receptors, which all signal through Gs and cyclic AMP. Dual agonists such as tirzepatide act at two of those receptors. Retatrutide adds the glucagon receptor, which makes it a common comparator in receptor selectivity, receptor binding and cAMP accumulation work in vitro.

Retatrutide vial sizes and prices, 10mg to 60mg

Every size holds the same lyophilised peptide. The price per milligram falls with each step up in size.

Retatrutide vial sizes and prices in AUD
Vial size	Price	Price per mg	Availability
Retatrutide 10mg	A$129.00	A$12.90/mg	In stock
Retatrutide 15mg	A$179.00	A$11.93/mg	In stock
Retatrutide 20mg	A$219.00	A$10.95/mg	In stock
Retatrutide 30mg	A$299.00	A$9.97/mg	In stock
Retatrutide 40mg	A$359.00	A$8.98/mg	In stock
Retatrutide 50mg	A$419.00	A$8.38/mg	In stock
Retatrutide 60mg	A$449.00	A$7.48/mg	In stock

Retatrutide research applications

cAMP accumulation in HEK293 or CHO cells expressing GIPR, GLP-1R or GCGR individually
Beta-arrestin recruitment and receptor internalisation readouts used to map signalling bias at each receptor
Glucose-stimulated insulin secretion measured in INS-1 832/13 or MIN6 beta-cell lines in culture
Hepatocyte culture assays of cAMP and glycogen phosphorylase activity as a glucagon receptor readout

Retatrutide key facts

Type	Synthetic lipidated peptide, GIPR/GLP-1R/GCGR triple agonist
Amino acid count	39, C-terminal amide
Also known as	LY3437943, LY-3437943, GIP/GLP-1/glucagon receptor triple agonist
Purity	99.22% by RP-HPLC, Janoshik Analytical
Analysed	7 July 2026

Research profile: Retatrutide: structure, mechanism and research use

Independent test: a sample of this product was analysed by Janoshik Analytical on 7 July 2026, purity 99.22% by RP-HPLC, test number 195038. The full report opens from the lab band on this page.

Storing and handling Retatrutide 20mg

Before reconstitution

Keep the sealed vial cool, dry and out of direct light. General practice for lyophilised peptides.

After reconstitution

Reconstitute with bacteriostatic or sterile water, store at 2 to 8°C and avoid repeated freeze-thaw cycles. No stability-tested shelf life is published for this product.

Reconstitution and storage Volumes, concentrations and storage at a glance.

Retatrutide reviews

5.0

★★★★★

6 reviews from verified buyers

Great quality

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Packaging was great and order came as described. Great work team no complaints here.

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Retatrutide 20mg questions

Where can I buy retatrutide in Australia?

NuVion stocks retatrutide in Australia in seven vial sizes, from 10mg to 60mg. Choose a size at the top of this page and check out, and the order is posted from Australian stock on a tracked express service. It is supplied as a research material only and is not on the Australian Register of Therapeutic Goods.

How much does retatrutide cost in Australia?

Retatrutide is $129 to $449 AUD depending on the vial size: 10mg $129, 15mg $179, 20mg $219, 30mg $299, 40mg $359, 50mg $419 and 60mg $449. The 60mg vial is the lowest price per mg at $7.48.

What is retatrutide used for in research?

It is used as a reference triple agonist for GIPR, GLP-1R and GCGR in cAMP, binding, arrestin recruitment and internalisation assays, and as a stimulus in beta-cell and hepatocyte signalling experiments. It is also a useful model compound for analytical work on lipidated peptides.

How does Retatrutide work at the cell level?

GIPR, GLP-1R and GCGR are class B1 GPCRs that couple mainly to Gs. Agonist binding uses the two-domain model: the C-terminal half of the peptide docks into the extracellular domain and the N-terminal half inserts into the transmembrane bundle, which triggers Gs activation, adenylyl cyclase stimulation and a rise in intracellular cAMP. The Retatrutide research profile covers the mechanism in full.

Which native sequence is the Retatrutide backbone built on?

The Retatrutide backbone is built on the native GIP sequence. Residues drawn from glucagon and GLP-1 are substituted in so that one chain fits the orthosteric pocket of all three receptors, and the C-terminus ends in an extension derived from exendin-4.

Why does Retatrutide contain Aib at position 2?

Aib, alpha-aminoisobutyric acid, at position 2 blocks cleavage by dipeptidyl peptidase-4 between residues 2 and 3. Retatrutide carries a second Aib at position 20, and an alpha-methyl-L-leucine at position 13 that favours a helical conformation in the middle of the chain.

At what pH is Retatrutide least soluble?

Retatrutide is least soluble near its isoelectric point, which sits in the mildly acidic range. The peptide carries a net negative charge at neutral pH, so neutral to slightly basic buffers are used when diluting stock solutions for assays.

Is reta the same as retatrutide?

Yes. Reta and reta peptide are short names for retatrutide, and some listings call it GLP-3 or a triple G agonist after its three receptor targets. It is one compound, stocked here in seven vial sizes.

How is retatrutide different from tirzepatide?

Tirzepatide is a dual agonist at the GIP and GLP-1 receptors. Retatrutide is a triple agonist, one peptide that also activates the glucagon receptor. NuVion stocks both as research materials.

What form does retatrutide arrive in?

As a lyophilised (freeze-dried) powder in a sealed vial. Bacteriostatic water is sold separately.

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