Retatrutide Premium Kit

Retatrutide Premium Kit — Two-Vial Research Peptide + Lab Supplies Bundle

The Retatrutide Premium Kit is the higher-volume bundle in the range, pairing two 10mg vials of lyophilised Retatrutide with a 10mL vial of bacteriostatic water, ten 1mL insulin syringes and four alcohol swabs. Retatrutide, developed under the code LY3437943, is a synthetic 39-amino-acid peptide built on a glucose-dependent insulinotropic polypeptide (GIP) backbone and engineered as a single molecule that activates three receptors: GIP, GLP-1 and glucagon. Researchers search for it as a retatrutide premium bundle or reta premium kit, and the peptide is often shortened to reta.

Retatrutide is studied mainly for body-weight regulation in obesity models, glycaemic control in type 2 diabetes models and reduction of liver fat, with a Phase 3 clinical program under way. At the receptor level it is a triple agonist: GIP and GLP-1 receptor signalling is associated with glucose-dependent insulin release and reduced food intake, while glucagon receptor activation is linked to hepatic fat oxidation and energy expenditure, so the three pathways are investigated together.

Omega Peptides Australia supplies the Retatrutide in this kit as a high-purity (≥99% HPLC), COA-verified lyophilised powder, dispatched same day from within Australia on orders placed before 12pm, with the batch Certificate of Analysis published in the COA library.

What is included

• 2 × Retatrutide 10mg vials, lyophilised powder in sealed sterile vials, ≥99% HPLC purity with a batch COA, $159.99 each separately.
• 1 × 10mL bacteriostatic water, sterile water with 0.9% benzyl alcohol preservative for reconstitution and multi-draw stability, $29.99 separately as the 10mL Bacteriostatic Water vial.
• 10 × 1mL insulin syringes, sterile, individually sealed, fixed-needle U-100 syringes, $19.99 separately as the 1mL Insulin Needles 10 Pack.
• 4 × alcohol swabs, individually sealed, for wiping vial septa before each puncture. Not sold separately.

Key research areas

• Body-weight regulation Retatrutide was investigated in a 48-week Phase 2 obesity trial published in 2023 and is now the subject of the multi-trial Phase 3 TRIUMPH program. The proposed mechanism combines reduced food intake through GLP-1 and GIP signalling with increased energy expenditure through the glucagon receptor.
• Glycaemic control A separate Phase 2 program in type 2 diabetes, published in 2023, examined glucose-lowering alongside weight change, and Phase 3 diabetes trials have followed. The pathway of interest is GIP and GLP-1 potentiation of glucose-dependent insulin secretion.
• Hepatic fat and liver research A Phase 2a substudy published in 2024 measured liver-fat change in participants with fatty liver, reflecting interest in glucagon receptor activity on hepatic lipid metabolism.
• Cardiovascular and comorbidity models The Phase 3 program includes studies in obesity with established cardiovascular disease, obesity with knee osteoarthritis and a large cardiovascular outcomes trial.
• Triple-agonist receptor pharmacology In-vitro work characterises how one peptide balances activity across three receptors. Retatrutide shows its greatest relative potency at the GIP receptor, and comparison with dual agonists such as Tirzepatide is an active line of research. Its C20 fatty diacid binds serum albumin, giving a plasma half-life of roughly six days.

Why these are supplied together

Retatrutide is supplied as a lyophilised cake, so nothing can happen in a research model until it is brought into solution. Bacteriostatic water is the recommended diluent: it dissolves the peptide cleanly, adds no salts or buffers, and its 0.9% benzyl alcohol keeps each reconstituted vial bacteriostatic across repeated draws over 28 days. Two vials let a laboratory run parallel arms, repeat an experiment on the same batch, or open the second vial when the first reaches its 28-day limit.

The quantities scale with the two vials. A 10mL diluent vial reconstitutes both at any common volume and leaves diluent for dilution series, ten fixed-needle syringes graduated in 0.01mL units cover both reconstitution draws and eight aliquots, and four swabs cover every septum. Where a single-vial study is planned, the Retatrutide Starter Kit supplies one vial with proportionally smaller consumables.

Specifications

Available sizes and pricing

The Premium Kit is a single fixed configuration built around two 10mg vials. Purchased individually, the three priced components come to $369.96 (two Retatrutide 10mg vials at $159.99 each, 10mL bacteriostatic water $29.99, 10 pack of syringes $19.99), so the kit price of $329.99 saves $39.97 and adds four alcohol swabs. Across 20mg of peptide the kit works out to about $16.50 per mg including supplies. The Ascension Bundle at the same $329.99 instead combines Retatrutide with Melanotan II and GHK-Cu.

• Retatrutide Premium Kit, $329.99 (2 × 10mg vials, about $16.50 per mg including lab supplies)

Quality and COA verification

Every batch of Retatrutide supplied by Omega Peptides Australia is independently tested by Janoshik Analytical, with HPLC purity and mass spectrometry identity confirmation reported on a Certificate of Analysis, and each batch document is published in the COA library so both vials in the kit can be matched to their result. The peptide is lyophilised for stability and sealed in sterile vials that stay closed until the first reconstitution draw. The bacteriostatic water is sterile-filled under a tamper-evident cap, the syringes are individually sealed with capped needles, and the swabs are sealed in sachets. The kit is packed for domestic transit away from light and heat.

Frequently bought together

• Retatrutide Starter Kit, $189.99, one 10mg vial with 3mL bacteriostatic water and five syringes for single-vial studies.
• Ascension Bundle, $329.99, Retatrutide with Melanotan II and GHK-Cu for multi-compound research.
• Bacteriostatic Water (10mL), $29.99, a second diluent vial for extended dilution work.
• 1mL Insulin Needles (10 Pack), $19.99, extra sterile syringes for longer sampling series.

Research guides

• Retatrutide research guide
• Where Australian researchers source Retatrutide
• Peptide storage guide: how to store lyophilised peptides properly
• COA testing explained for research peptides in Australia
• Peptide reconstitution calculator
• Certificate of Analysis library

Frequently asked questions

What is in the Retatrutide Premium Kit?
The kit contains two 10mg vials of lyophilised, COA-verified Retatrutide, one 10mL vial of bacteriostatic water, ten 1mL sterile insulin syringes and four alcohol swabs. Everything needed to reconstitute both vials and draw measured aliquots over their 28-day windows arrives in one order, with the batch COA in the COA library.

What is Retatrutide?
Retatrutide (LY3437943) is a synthetic 39-amino-acid peptide built on a GIP backbone and modified with a C20 fatty diacid so it binds albumin and circulates for days. It is a single-molecule agonist at the GIP, GLP-1 and glucagon receptors, investigated in obesity, type 2 diabetes and liver-fat models.

Do I need bacteriostatic water and syringes?
Yes. Retatrutide is supplied as a dry lyophilised powder and must be dissolved before it can be used in any in-vitro model. Bacteriostatic water is the recommended diluent because its preservative keeps each reconstituted vial usable across repeated draws, and fine-scale 1mL syringes measure the diluent and the small aliquots accurately.

How much do I save with the bundle?
The kit is priced at $329.99 against $369.96 for two Retatrutide 10mg vials, 10mL bacteriostatic water and a 10 pack of syringes bought separately, a saving of $39.97, with four alcohol swabs, which are not sold on their own, included free. It is the lowest-cost way to source two verified vials with supplies.

Can I buy the items separately?
Yes. Retatrutide is listed on its own in several vial sizes, bacteriostatic water is available in 3mL and 10mL vials, and the 1mL insulin needles come in 5 and 10 packs. Alcohol swabs are not listed separately, so the kits are currently the only way to include them.

Can I buy Retatrutide at Chemist Warehouse or a pharmacy in Australia?
No. Retatrutide is an investigational compound that has not been approved by the TGA and is not listed on the Australian Register of Therapeutic Goods, so Chemist Warehouse, Priceline and other pharmacies do not stock it. Omega Peptides Australia supplies the lyophilised research-grade compound strictly for laboratory use.

Can Australian compounding pharmacies supply Retatrutide?
Compounding pharmacies may only prepare a medicine for an individual patient on a valid prescription under Pharmacy Board standards, and Retatrutide is an unapproved investigational compound rather than a registered medicine, so it is not a standard compounding item. Research suppliers such as Omega Peptides Australia supply the lyophilised research compound for laboratory use only.

How do you reconstitute Retatrutide?
Swab both septa, draw the planned volume of bacteriostatic water into a syringe and add it slowly down the inside wall of the Retatrutide vial rather than onto the powder. Swirl gently until clear, never shake, then label the vial, refrigerate at 2–8°C and use within 28 days. Reconstitute the second vial only when it is needed.

How should Retatrutide be stored?
Keep the lyophilised vials at 2–8°C for short-term storage or −20°C for long-term storage, protected from light and moisture, and avoid repeated freeze-thaw cycles. Once reconstituted, keep the solution refrigerated at 2–8°C and use it within 28 days. The bacteriostatic water and syringes are stored at room temperature with seals intact.

Where can I buy the Retatrutide Premium Kit in Australia?
Omega Peptides Australia holds the kit in domestic stock and dispatches same day on orders placed before 12pm, with tracked delivery Australia-wide and a batch COA for the peptide. It sits alongside the other COA-verified compounds in the research peptides collection, so related peptides can join the same order.

What does the Retatrutide Premium Kit cost in Australia?
The kit is $329.99 for two 10mg vials of Retatrutide, about $16.50 per mg including the 10mL bacteriostatic water, ten syringes and four swabs. The Retatrutide Starter Kit is $189.99 for one 10mg vial with 3mL of water and five syringes, so the Premium Kit is the better value once two vials are needed.

How do I get the Retatrutide Premium Kit online in Australia?
Add the kit to the cart on this page and check out; orders placed before 12pm are dispatched the same business day from within Australia. Parcels travel in discreet packaging with tracked domestic shipping, and a tracking number is emailed once the parcel is lodged. The batch COA can be viewed in the COA library at any time.

Is Retatrutide legal in Australia?
Omega Peptides Australia supplies Retatrutide strictly for lawful in-vitro laboratory research. It is not approved by the TGA for human or veterinary use and is not sold as a medicine or supplement. Purchasers are responsible for ensuring their intended use complies with all applicable laws.

Retatrutide Premium Kit vs Starter Kit: what is the difference?
The Premium Kit supplies two 10mg vials with 10mL of bacteriostatic water, ten syringes and four swabs for $329.99, saving $39.97 against separate purchase. The Starter Kit supplies one 10mg vial with 3mL of water, five syringes and two swabs for $189.99. Both use the same COA-verified batch material.

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