Tirzepatide

Tirzepatide Australia and New Zealand (LY3298176): a dual agonist research peptide

Tirzepatide is a synthetic research peptide (a lab-made chain of amino acids, the building blocks of proteins), also known by its development code LY3298176. It is a dual agonist (one molecule that switches on two receptors), acting on the GIP and GLP-1 receptors. AusBioLabs supplies it as a lyophilised (freeze-dried) powder for in-vitro (test-tube) laboratory research only.

Tirzepatide at a glance

• Compound: Tirzepatide (LY3298176), a dual GIP/GLP-1 agonist research peptide.
• Purity & testing: over 99% by HPLC (latest batch 99.9%), third-party tested by Janoshik, with a CoA per batch.
• Form: white lyophilised (freeze-dried) powder in a sealed vial.
• Sizes: 10mg and 20mg vials, on their own or with a starter kit.
• Shipping: same-day dispatch from Sydney on orders before 12pm AEST, free express over $200.

What is Tirzepatide, and is it a peptide?

Yes. Tirzepatide is a peptide, not a steroid: a single chain of 39 amino acids built in a laboratory. An agonist is a molecule that binds to a receptor (a docking point on a cell) and switches it on. Tirzepatide is a dual agonist because one molecule activates two incretin receptors (incretins are gut hormones studied in metabolic research), making it a tool for studying those receptor pathways in the lab.

How is Tirzepatide studied in research?

Tirzepatide is built on a GIP (glucose-dependent insulinotropic polypeptide) backbone, modified so the same molecule also switches on the GLP-1 (glucagon-like peptide-1) receptor. In receptor studies it behaves as a strong GIP-receptor agonist with a weaker pull on GLP-1. Researchers often compare it with Retatrutide, a triple agonist that adds a third target, to study how one extra receptor changes the response. All such work is receptor and cell research on the bench, never testing in people or animals.

Is Tirzepatide approved? Research status explained

Tirzepatide sold here is an investigational research compound, still under study and not an approved product. It is not approved by the TGA (Australia’s Therapeutic Goods Administration) or the FDA for the use sold on this page. It is not a medicine, a supplement, a cosmetic or a consumer product of any kind, and is supplied strictly for laboratory research.

Where Tirzepatide fits in metabolic research

Tirzepatide is used as a reference compound in benchtop studies of incretin receptor signalling, and it sits in our Metabolic Research range alongside other receptor-active peptides. Laboratories often study it against a different class for contrast, such as Cagrilintide, which acts on the amylin receptor (a separate metabolic pathway) rather than the incretin receptors. These comparisons stay in-vitro.

Tirzepatide purity, third-party testing and the CoA

Before a batch goes on sale, AusBioLabs has Tirzepatide tested by Janoshik, an independent third-party laboratory. Purity is measured by HPLC (high-performance liquid chromatography, which separates a sample so the share of the target compound can be measured) and comes in above 99%, with the latest batch at 99.9%. Identity is confirmed by a blind test, in which the sample is placed among other GLP-1 peptides and must be picked out correctly as Tirzepatide.

Recent batches are also screened by Janoshik for:

• Endotoxins (contaminants left behind by bacteria): under 1 EU per vial.
• Heavy metals (arsenic, cadmium, lead and mercury): all not detected.

A batch-specific Certificate of Analysis (CoA) is published on the website and can be verified on the Janoshik website, so you can match each vial to its own test data before you buy.

Buy Tirzepatide in Australia and New Zealand: sizes and shipping

• Tirzepatide for sale in Australia and New Zealand: buy online from AusBioLabs, an Australian-owned supplier holding stock in the country.
• Available in 10mg and 20mg vials, each on its own or with a starter kit of basic lab-prep supplies for reconstitution.
• Orders before 12pm AEST are dispatched the same business day from Sydney by tracked Australia Post Express.
• Delivery usually takes 2 to 4 business days for VIC, NSW, QLD, NT and SA, 4 to 6 for WA, and 4 to 6 business days for New Zealand.
• Express shipping is free on orders over $200, and every order includes the batch Certificate of Analysis.

How to store and reconstitute Tirzepatide

• Store sealed vials below 25°C short-term, or at -20°C for longer, away from light.
• To reconstitute (dissolve the powder back into liquid), use sterile or bacteriostatic water (water with a preservative that holds back bacteria).
• Keep the mixed solution refrigerated and use it within a few weeks.
• Avoid repeated freeze-thaw cycles, which can break down the peptide.

Tirzepatide technical specifications

Tirzepatide FAQs

What is Tirzepatide (LY3298176)?

Tirzepatide is a synthetic research peptide and a dual agonist of the GIP and GLP-1 receptors. LY3298176 is its development code. It is supplied as a freeze-dried powder for in-vitro research only.

Is Tirzepatide a peptide or a steroid?

It is a peptide, a chain of 39 amino acids. It is not a steroid, and the two work in completely different ways.

Is Tirzepatide a GLP-1 or a GIP agonist?

Both. It is a dual agonist: one molecule switches on both the GIP and the GLP-1 receptor, which is why it is called a dual-acting agonist.

How pure is Tirzepatide, and is a CoA provided?

AusBioLabs Tirzepatide is tested by Janoshik, an independent lab, and the latest batch tested 99.9% pure by HPLC (over 99%). Identity is confirmed by a blind test against other GLP-1 peptides, and recent batches have also been screened for endotoxins (under 1 EU per vial) and heavy metals (not detected). A batch-specific Certificate of Analysis (CoA) is published on the website for you to check.

How should Tirzepatide be stored and reconstituted?

Keep sealed vials below 25°C short-term, or at -20°C for longer storage. Reconstitute with sterile or bacteriostatic water, keep refrigerated after mixing, and avoid repeated freeze-thaw.

Can I buy Tirzepatide in Australia and New Zealand, and what sizes are there?

Yes. You can buy Tirzepatide online in Australia and New Zealand in 10mg and 20mg vials, each on its own or with a starter kit, dispatched from Sydney with tracked express shipping.

What does the milligram size mean?

The milligram figure (10mg or 20mg) is the amount of peptide powder in the vial. It is a quantity for lab work, not a dose, as the product is not for human or animal use.

Is Tirzepatide approved for human or medical use?

No. It is an investigational research compound, not approved by the TGA or FDA for the use sold here, and not for human or animal use.

Disclaimer: Tirzepatide is supplied for in-vitro laboratory research only. It is not a medicine, supplement, or cosmetic, and it is not for human or animal use. By ordering, you confirm you are a qualified researcher and will use this product in line with all applicable laws.