---
title: "Understanding Retatrutide Costs: What is the Price Per Month in Australia?"
slug: "retatrutide-price-per-month-australia"
date: "18 March 2026"
read_time: "5 min read"
category: "Research Insights"
canonical_url: "https://www.aussiepeptides.au/blog/retatrutide-price-per-month-australia"
markdown_url: "https://www.aussiepeptides.au/blog/retatrutide-price-per-month-australia/markdown"
---
# Understanding Retatrutide Costs: What is the Price Per Month in Australia?

> How much does Retatrutide cost per month in Australia? We break down the research cost across Phase 2 trial dosing protocols — 2mg, 4mg, 8mg, and 12mg weekly — so you can plan your research budget accurately.

- Published: 18 March 2026
- Read time: 5 min read
- Category: Research Insights
- Canonical URL: https://www.aussiepeptides.au/blog/retatrutide-price-per-month-australia

One of the most common questions researchers ask before starting a retatrutide protocol is a simple one: **how much will it actually cost per month?** The answer depends entirely on the weekly dose — and the difference between low-dose and high-dose protocols can be significant. Here's an honest breakdown of the numbers.

## The Starting Point: A Single Vial

Retatrutide from Aussie Peptides is supplied as a lyophilised powder at **10mg per vial**, priced at **$139.99 AUD**. That 10mg is your total usable quantity per vial, and it's the baseline from which all protocol costs are calculated.

In Phase 2 clinical trials (the most cited reference point in the research community), retatrutide was studied at weekly doses of **2mg, 4mg, 8mg, and 12mg**. The dose-dependent response was clear: higher doses produced more substantial weight reductions, but each step up also increases how quickly you work through a vial.

## Monthly Cost by Protocol Dose

The following breakdown is based on a standard four-week research month, using the Phase 2 trial dose groups as reference points. All figures use a single 10mg vial at $139.99.

Weekly Dose
Doses per 10mg Vial
Weeks per Vial
Est. Monthly Cost (AUD)

2mg / week
5 doses
5 weeks
~$112/month

4mg / week
2.5 doses
2.5 weeks
~$224/month

8mg / week
1.25 doses
1.25 weeks
~$448/month

12mg / week
~0.8 doses
~0.8 weeks
~$672/month

*Monthly cost estimated as: (4 doses/month × weekly dose) ÷ 10mg × $139.99. Figures are for research planning reference only.*

## The Starter Bundle Option

For researchers beginning a lower-dose protocol, the [Retatrutide Starter Bundle](/shop/retatrutide-bundle) at **$269.99 AUD** provides 2×10mg vials plus bacteriostatic water, insulin syringes, and alcohol swabs — everything required to start reconstitution from day one. At the 2mg/week protocol level, two vials covers **10 weeks** of research, bringing the effective cost down versus purchasing single vials.

The bundle saves $35.97 versus buying components separately, and removes the friction of sourcing supplies from multiple orders.

## Why Researchers Ask "Price Per Month"

The "per month" framing comes from the pharmaceutical world, where GLP-1 medications like Ozempic and Mounjaro are prescribed on monthly repeat scripts. Retatrutide is not available as a prescription medication in Australia — it is a research compound supplied for **in-vitro laboratory and research use only**, not for human consumption.

The per-month cost calculation is still useful as a research budgeting framework, since most multi-week research protocols are planned over monthly windows. It maps cleanly onto how researchers think about ongoing supply requirements.

## Phase 2 Trial Context

The dose groups referenced above come from the Eli Lilly Phase 2 trial published in the *New England Journal of Medicine* (2023). [[1]](https://pubmed.ncbi.nlm.nih.gov/37366315/) Key findings at 48 weeks:

- **2mg dose** — mean body weight reduction of ~8.7%

- **4mg dose** — mean body weight reduction of ~17.3%

- **8mg dose** — mean body weight reduction of ~22.8%

- **12mg dose** — mean body weight reduction of ~24.2%, with **no plateau observed** at week 48

The dose-dependent response makes clear why higher doses produce more significant outcomes — and why understanding the cost implications at each dose level matters when planning a structured research program.

## Domestic Supply: No Import Delays

All Retatrutide supplied by Aussie Peptides ships domestically from within Australia. There are no customs delays, no import duties, and no international freight uncertainty. Every batch undergoes third-party analysis and a Certificate of Analysis is available to view for each lot.

## References

- [Jastreboff et al. — Triple Hormone Receptor Agonist (Retatrutide) for Obesity — A Phase 2 Trial, NEJM (2023)](https://pubmed.ncbi.nlm.nih.gov/37366315/)

- [Lilly Press Release — TRIUMPH-4 Phase 3 Topline Results, December 2025](https://www.prnewswire.com/news-releases/lillys-triple-agonist-retatrutide-delivered-weight-loss-of-up-to-an-average-of-71-2-lbs-along-with-substantial-relief-from-osteoarthritis-pain-in-first-successful-phase-3-trial-302638804.html)

*⚠ All information is for educational and research purposes only. Retatrutide is supplied for in-vitro research and laboratory use only. Not for human consumption.*
