Retatrutide + Melanotan 2 Starter Bundle

Retatrutide + Melanotan 2 Starter Bundle — Dual Research Peptide + Lab Supplies Kit

The Retatrutide + Melanotan 2 Starter Bundle pairs two of the most requested research peptides in one order: a 10mg vial of Retatrutide, the investigational triple agonist of the GIP, GLP-1 and glucagon receptors developed under the code LY3437943 and often shortened to reta, and a 10mg vial of Melanotan II, the cyclic alpha-MSH analogue usually written as MT2, MT-2 or melanotan 2. Researchers often search for this pairing as a retatrutide melanotan bundle or a reta MT2 kit; the sterile supplies needed for reconstitution are packed with both vials.

Retatrutide is studied in metabolic research models for energy balance, glucose handling and hepatic fat. Its 39-amino-acid backbone is built on the GIP sequence and carries a C20 fatty diacid that binds albumin, extending its half-life to roughly six days. Melanotan II is investigated in melanocortin research for pigmentation, energy homeostasis and sexual-function signalling as a non-selective agonist at the MC1, MC3, MC4 and MC5 receptors. Both peptides act through G-protein-coupled receptors that raise intracellular cyclic AMP.

Omega Peptides Australia supplies both peptides as high-purity (≥99% HPLC), COA-verified lyophilised powders in sealed sterile vials, dispatched same day from within Australia on orders placed before 12pm, with the batch Certificate of Analysis for each vial available in the COA library.

What is included

• 1 × Retatrutide 10mg vial, lyophilised powder in a sealed sterile vial ($159.99 individually).
• 1 × Melanotan II (MT2) 10mg vial, lyophilised powder in a sealed sterile vial ($79.99 individually).
• 1 × 10mL bacteriostatic water, sterile water with 0.9% benzyl alcohol ($29.99 individually).
• 10 × 1mL insulin syringes, individually sealed, fixed needle (10 pack $19.99 individually).
• 4 × alcohol swabs for cleaning vial stoppers before each puncture.

Key research areas

• Metabolic and energy-balance research (Retatrutide). The most clinically advanced triple incretin agonist, with Phase 2 and Phase 3 programmes reporting large, dose-dependent reductions in body weight. The glucagon-receptor component is thought to add energy expenditure and hepatic effects to the appetite signalling driven by GLP-1 and GIP.
• Glucose handling and incretin signalling (Retatrutide). GIP and GLP-1 receptor activation on pancreatic beta cells enhances glucose-dependent insulin release, and retatrutide has been investigated in type 2 diabetes populations for glycaemic outcomes.
• Hepatic fat research (Retatrutide). Imaging sub-studies within the clinical programme have measured liver-fat content, making retatrutide a reference compound in steatotic liver disease research.
• Pigmentation and melanogenesis research (Melanotan II). MC1R activation on melanocytes raises cyclic AMP, activates MITF and upregulates tyrosinase, shifting melanin synthesis toward eumelanin. Melanotan II, developed at the University of Arizona in the 1980s, remains a standard MC1R agonist in these models.
• Central melanocortin signalling (Melanotan II). MC4R activation in the hypothalamus is studied for appetite and sexual-arousal pathways. Bremelanotide (PT-141) is a metabolite of Melanotan II, so the two are often compared.

Why these are supplied together

Retatrutide and Melanotan II sit in different research categories, metabolic and melanocortin, but share the same handling requirements: both arrive lyophilised, both are reconstituted with bacteriostatic water, and both are refrigerated once in solution. Packing a 10mL vial of bacteriostatic water, ten 1mL syringes and alcohol swabs with the peptides removes the need to assemble supplies from separate orders, and 10mL is enough to reconstitute both vials with diluent to spare.

There is also a research rationale. Incretin and melanocortin pathways intersect in the hypothalamic control of energy balance: in rodent models, central GLP-1 receptor signalling engages pro-opiomelanocortin neurons that release alpha-MSH, the natural ligand Melanotan II mimics, so laboratories comparing the two pathways often source both compounds together. Retatrutide also differs from the dual agonist tirzepatide by adding glucagon-receptor activity, giving the bundle a distinct comparator set for receptor-pharmacology work.

Specifications

Available sizes and pricing

The bundle comes in one configuration. Bought separately, the two peptide vials, 10mL bacteriostatic water and a 10 pack of syringes total $289.96, so the bundle saves about $20 and adds the swabs. The Ascension Bundle adds a 50mg GHK-Cu vial to the same contents.

• Retatrutide + Melanotan 2 Starter Bundle, $269.99 (Retatrutide 10mg at about $16.00 per mg and Melanotan II 10mg at about $8.00 per mg when priced individually, supplies included)

Quality and COA verification

Every peptide batch in this bundle is tested independently by Janoshik Analytical: HPLC confirms purity at or above 99% and mass spectrometry confirms identity against the expected molecular weight. A Certificate of Analysis is issued for every batch and published in the COA library. Both peptides are lyophilised in sealed sterile vials, which keeps the powder stable in storage and domestic transit, and the kit is packed with the diluent and syringes secured separately.

Frequently bought together

• Ascension Bundle (Retatrutide, Melanotan II, GHK-Cu), $329.99, the same kit with a 50mg GHK-Cu vial for skin and collagen research.
• Melanotan II (10mg), $79.99, a second MT2 vial for parallel melanocortin assays.
• Bacteriostatic Water (10mL), $29.99, a spare diluent vial for repeat reconstitutions.
• 1mL Insulin Needles (10 Pack), $19.99, additional sterile syringes.

Research guides

• Retatrutide research guide
• Best place to buy Retatrutide in Australia
• Retatrutide vs tirzepatide
• Peptide storage guide
• COA testing explained
• Peptide reconstitution calculator

Frequently asked questions

What is in the Retatrutide + Melanotan 2 Starter Bundle?
One 10mg Retatrutide vial and one 10mg Melanotan II vial, both lyophilised powders in sealed sterile vials, plus one 10mL vial of bacteriostatic water, ten 1mL insulin syringes and four alcohol swabs, for $269.99. The Ascension Bundle contains the same items plus a 50mg GHK-Cu vial, the copper tripeptide studied in skin and collagen research, for $329.99.

What is Retatrutide?
Retatrutide (LY3437943) is a synthetic 39-amino-acid peptide designed as a single-molecule agonist of the GIP, GLP-1 and glucagon receptors. A C20 fatty diacid on the backbone binds albumin, giving a half-life of about six days. It is an investigational Phase 3 compound studied in metabolic research models for energy balance, glucose regulation and hepatic fat.

Do I need bacteriostatic water and syringes?
Yes. Both peptides arrive as dry lyophilised powder and must be dissolved before any laboratory procedure. Bacteriostatic water is the recommended diluent because its 0.9% benzyl alcohol inhibits bacterial growth across repeated vial punctures. The 10mL vial, ten sterile 1mL syringes and four swabs supplied here cover both vials.

How much do I save with the bundle?
Purchased separately, a Retatrutide 10mg vial is $159.99, a Melanotan II 10mg vial $79.99, 10mL bacteriostatic water $29.99 and a 10 pack of 1mL syringes $19.99, a total of $289.96. The bundle is $269.99, a saving of about $20, with the alcohol swabs included at no charge.

Can I buy the items separately?
Yes. Retatrutide is listed in 5mg, 10mg, 20mg, 30mg and 60mg vials, Melanotan II in a 10mg vial, bacteriostatic water in 3mL and 10mL vials, and 1mL syringes in 5 and 10 packs. Buying separately suits laboratories that already hold diluent and syringes; the bundle suits a first order.

Can I buy Retatrutide at Chemist Warehouse or a pharmacy in Australia?
No. Retatrutide is an investigational Phase 3 compound not approved by the TGA, the FDA or any other regulator, so Chemist Warehouse, Priceline and other retail pharmacies do not stock it. Melanotan II is likewise not an approved medicine in Australia, and the TGA has warned against tanning products containing it. The compounds supplied here are laboratory products, not medicines.

Can Australian compounding pharmacies supply Retatrutide?
Retatrutide is not a registered medicine in Australia. Compounding pharmacies may only prepare a product for an individual patient against a prescription, and any such preparation is a separate product from the research compound sold here. Omega Peptides Australia supplies the lyophilised research compounds for in-vitro laboratory use only and does not compound medicines.

How do you reconstitute Retatrutide and Melanotan II?
Wipe both stoppers with an alcohol swab. Draw the required volume of bacteriostatic water into a 1mL syringe and add it slowly down the inside wall of the peptide vial, not onto the powder. Swirl gently until clear; never shake. Label with the date, refrigerate at 2–8°C and use within 28 days.

How should the peptides in this bundle be stored?
Keep the lyophilised vials sealed at 2–8°C short term or −20°C long term, protected from light and moisture, and avoid repeated freeze-thaw cycles. Once reconstituted, store both peptides at 2–8°C and use within 28 days. Bacteriostatic water is kept at room temperature and discarded 28 days after the first puncture.

Where can I buy Retatrutide in Australia?
Directly from Omega Peptides Australia. Stock is held domestically, orders placed before 12pm are dispatched the same day with tracked delivery, and every batch is supported by an independent Certificate of Analysis. The full range of vials, blends and kits is listed in the research peptides collection.

What does Retatrutide cost in Australia?
This bundle supplies Retatrutide 10mg and Melanotan II 10mg with bacteriostatic water, syringes and swabs for $269.99. Individually, a Retatrutide 10mg vial is $159.99, about $16.00 per mg, and a Melanotan II 10mg vial is $79.99, about $8.00 per mg. The Ascension Bundle adds a 50mg GHK-Cu vial for $329.99.

How do I get Retatrutide online in Australia?
Add the bundle to your cart from this page and complete checkout. Orders received before 12pm are dispatched the same business day from Australian stock, with tracked domestic shipping and discreet packaging that does not identify the contents. Tracking is emailed once the parcel is lodged.

Is Retatrutide legal in Australia?
Omega Peptides Australia supplies Retatrutide and Melanotan II strictly for lawful in-vitro laboratory research. Neither compound is approved by the TGA for human or veterinary use, and neither is sold as a medicine or supplement. Purchasers are responsible for ensuring their intended use complies with all applicable laws.

⚠ For in-vitro research and laboratory use only. Not for human or veterinary use.