Buy Tirzepatide Australia | Peptides Collective

What is Tirzepatide?

Tirzepatide is a lipidated synthetic peptide of 39 amino acids. It binds two incretin receptors, GIP and GLP-1, and a C20 fatty diacid side chain lets it bind albumin, which extends its half-life.

Read the full explainer: what is Tirzepatide?

What is in each Tirzepatide vial?

STRENGTH	FORM	PRICE	CERTIFICATE
10mg	Lyophilised powder	A$98	Pending
20mg	Lyophilised powder	A$168	Pending

What has research on Tirzepatide examined?

Tirzepatide has been examined in large randomized human trials, including the SURPASS programme in type 2 diabetes and the SURMOUNT programme in overweight and obesity, with further trials in related conditions.

The table lists primary sources by year and model. Findings describe the study subjects, not this research vial.

STUDY	YEAR	MODEL	PMID
Efficacy and safety of a novel dual GIP and GLP-1 receptor agonist tirzepatide in patients with type 2 diabetes (SURPASS-1): a double-blind, randomised, phase 3 trial	2021	human	34186022
Tirzepatide versus Semaglutide Once Weekly in Patients with Type 2 Diabetes	2021	human	34170647
Tirzepatide Once Weekly for the Treatment of Obesity	2022	human	35658024
Tirzepatide: A Review in Type 2 Diabetes	2024	review	38388874

What adverse events have studies of Tirzepatide reported?

In phase 3 trials in type 2 diabetes and in obesity without diabetes, the most common adverse events were gastrointestinal (nausea, diarrhoea, vomiting), mostly mild to moderate and mainly during dose escalation (PMID 34186022, 35658024). In SURMOUNT-1, 4.3-7.1% stopped because of adverse events (placebo 2.6%). SURPASS-2 reported serious adverse events in 5-7% (PMID 34170647).

These findings describe the people or animals in each study. The sources list gives every PubMed record.

How do you reconstitute and store Tirzepatide?

Store the sealed vial frozen (about -20 degrees Celsius), dry and away from light until it is reconstituted.

After reconstitution with a sterile solvent, keep the solution at 2 to 8 degrees Celsius and avoid repeated freezing and thawing. Record the solvent, volume and date on the vial label.

BAC Water is the usual laboratory solvent. Dilute acetic acid is an alternative for peptides that dissolve poorly in water. The reconstitution guide and storage guide cover laboratory handling.

STATE	TEMPERATURE	NOTES
Sealed vial	-20 °C	Dry and dark. Keeps to the label date.
Reconstituted	2 to 8 °C	Sterile technique. Avoid repeat freeze and thaw.
In transit	Cold pack	Refrigerate or freeze on arrival.

Is Tirzepatide legal to buy in Australia?

Tirzepatide is listed in Schedule 4 of the Poisons Standard (prescription only). Source: the June 2026 Poisons Standard instrument (F2026L00633).

Tirzepatide is not named on WADA's 2026 Prohibited List.

POISONS STANDARD: Schedule 4
WADA 2026: Not named
SALE TERMS: Research use only

Are peptides legal in Australia?

How fast does Tirzepatide ship?

Orders placed before [cut-off] leave Western Australia the same business day with tracking, by [carrier]. Delivery estimates for each state are on the shipping page.

How does Tirzepatide compare?

Tirzepatide questions

What adverse events have studies of tirzepatide reported?

In phase 3 trials in type 2 diabetes and in obesity without diabetes, the most common adverse events were gastrointestinal (nausea, diarrhoea, vomiting), mostly mild to moderate and mainly during dose escalation (PMID 34186022, 35658024). In SURMOUNT-1, 4.3-7.1% stopped because of adverse events (placebo 2.6%). SURPASS-2 reported serious adverse events in 5-7% (PMID 34170647).

What is the difference between the 10mg and 20mg vials?

Only the amount of Tirzepatide in the vial differs: 10mg, 20mg. Each strength has its own batch number and its own certificate.

Is tirzepatide a peptide?

Yes. Tirzepatide is a peptide of 39 amino acids.

Is tirzepatide a prescription medicine in Australia?

Tirzepatide is listed in Schedule 4 of the Poisons Standard (prescription only). Peptides Collective sells it for laboratory research use only.

Is tirzepatide banned in sport?

Tirzepatide is not named on WADA's 2026 Prohibited List.

What is the CAS number for tirzepatide?

The CAS number for Tirzepatide is 2023788-19-2. Its PubChem CID is 166567236.

How long does an unopened tirzepatide vial keep?

A sealed vial of lyophilised powder keeps to the date on its label when stored frozen, dry and dark. Once reconstituted, keep the solution at 2 to 8 degrees Celsius and record the date on the label.

Does every tirzepatide batch have a certificate?

Yes. Every Tirzepatide batch is tested by [lab] before it goes on sale, and the certificate is published under the batch number printed on the vial. The current batch certificate is [pending].

Where is tirzepatide shipped from?

Orders ship tracked from Western Australia. Orders placed before [cut-off] leave the same business day. Delivery estimates by state are on the shipping page.

What purity is the current tirzepatide batch?

The current Tirzepatide batch certificate is [pending]. When it is published, it reports purity by HPLC to three decimal places and confirms identity by mass spectrometry.

Which solvent reconstitutes tirzepatide?

BAC Water (sterile water with 0.9% benzyl alcohol) is the usual laboratory solvent. Dilute acetic acid is an alternative for peptides that dissolve poorly in water. Record the solvent, volume and resulting concentration on the vial label.

How much does tirzepatide cost in Australia?

Tirzepatide costs A$98 for 10mg and A$168 for 20mg at Peptides Collective, in Australian dollars. Each price is per vial of lyophilised powder.

Tirzepatide 10mg and 20mg

How is this batch tested?

What are its chemical identifiers?

Researchers add these to their order