Aussie Peptides · AU
Retatrutide 20mg
$299.00
Why Aussie Peptides
Lot-matched certificate
Independently analysed before release; look the lot up on the verification page.
Strictly research use
Not for human or veterinary consumption.
Express AU shipping
Discreet, fully tracked, 1–3 business days.
Aussie Peptides · specification
Retatrutide 20mg
- Presentation
- 20mg sealed glass vial
- SKU
- RETATRUTIDE-20MG
- Format
- Lyophilised powder
- Purity
- ≥99% release specification by RP-HPLC — result recorded per lot
- Documentation
- Batch-specific Certificate of Analysis
- Storage
- 2–8 °C, protect from light
- Dispatch
- Cold-chain, same-day, Australia-wide
- Origin
- Packed in Australia · Aussie Peptides
- Category
- Metabolic
Specifications are standardised across the Aussie Peptides range. Batch values — lot number, assay result and expiry — are printed on the vial and matched to the Certificate of Analysis supplied with your order.
The Aussie Peptides label
- 1
Coral spine + hexagon mark
Every Aussie Peptides vial carries the same coral spine and molecular hexagon so a genuine vial is recognisable at a glance.
- 2
Compound, strength, fill volume
Printed in a fixed position on the cream label — compound name, strength in milligrams, and vial volume.
- 3
LOT + EXP fields
Hand-stamped per batch and matched to the Certificate of Analysis you can look up on our CoA page.
- 4
Lot-tested by RP-HPLC — research use only
The compliance line appears on every label, on every SKU, without exception.
Retatrutide — strengths
Same batch-tested material, different presentations. Higher-strength vials lower the cost per milligram; blends arrive pre-combined in a single lyophilised cake so one reconstitution covers both compounds.
Laboratory handling · Metabolic research peptide
Usage & handling guide
A lyophilised peptide with a long solution half-life. Reconstitute gently, aliquot immediately, and keep cold at all times.
- Reconstitution
- 3 mL bacteriostatic or sterile water for a standard bench stock
- Stock concentration
- ≈ 6.7 mg/mL (20 mg ÷ 3 mL)
- Storage once reconstituted
- 2–8 °C, upright, protected from light
- Stability window
- Use reconstituted stock within 21–28 days at 2–8 °C; freeze single-use aliquots at −20 °C for longer holds
1 · Equilibrate before opening
Let the sealed vial reach room temperature before breaking the seal. Opening a cold vial draws in moisture, and lyophilised peptide is hygroscopic.
2 · Add diluent down the wall
Direct the diluent slowly against the inside wall of the vial rather than onto the powder cake. A fast stream shears the peptide and lowers recovery.
3 · Dissolve, never shake
Swirl or roll gently until the cake is fully dissolved. Vortexing or shaking foams the solution and denatures peptide at the air–liquid interface.
4 · Inspect the solution
A correctly reconstituted stock is clear and free of visible particulate. Cloudiness, fibres, or a film indicates the stock should be discarded.
5 · Aliquot for single use
Split the stock into single-use aliquots in low-bind tubes and label each with compound, concentration, LOT and date. Repeated freeze–thaw is the most common cause of lost potency.
6 · Record against the CoA
Log the LOT number and the batch Certificate of Analysis reference alongside your results so every data point is traceable to a tested batch.
Figures above are worked examples for bench preparation only. Always calculate your own working concentrations from the strength printed on the vial, the exact diluent volume you added, and the batch assay result on the Certificate of Analysis.
Safety & handling cautions
- Do not freeze the reconstituted stock repeatedly — one freeze–thaw per aliquot only.
- Keep the vial upright; product retained in the stopper is lost mass and skews your calculated concentration.
- Wear appropriate PPE, work in a clean and controlled area, and dispose of vials, sharps and unused stock in line with your institution’s waste procedures.
Important — no dosage advice
This guide covers reconstitution, storage and laboratory handling only. Aussie Peptides does not publish, supply or advise on human or veterinary dosing, administration schedules, or therapeutic protocols for any product, and nothing here should be interpreted as such.
All products are supplied strictly for in-vitro laboratory research by qualified professionals. They are not medicines, are not evaluated by the TGA, and are not for human or animal consumption. Nothing on this page is medical advice — speak to a qualified healthcare professional about any health matter.
In depth
Retatrutide in Australia — research notes
Retatrutide 20mg is the largest research vial we stock of the triple GIP/GLP-1/glucagon receptor agonist, giving the lowest cost per milligram in the range.
- 20mg lyophilised — lowest $/mg retatrutide
- One lot, one certificate for the whole study
- Comparators: Tirzepatide, Semaglutide
For extended protocols
A single 20mg lot covers a longer study than two 10mg vials and removes lot variance from the dataset. It also carries one certificate, which simplifies documentation when results are written up.
Concentration arithmetic
20mg with 2mL gives 10mg/mL; with 4mL, 5mg/mL. Aliquot the reconstituted stock where the protocol runs for weeks rather than repeatedly puncturing the main vial.
Comparators and reading
Tirzepatide (dual) and semaglutide (GLP-1 only) are stocked as comparators, and the retatrutide guide sets out the mechanism differences. Every vial ships from our Australian storage and dispatch facility with a lot-matched certificate of analysis and cold-chain packaging.
About this compound
Research overview
Retatrutide is a triple GIP/GLP-1/glucagon receptor agonist peptide, supplied as a 20mg lyophilised research vial. HPLC verified to >=99% purity with a lot-matched certificate of analysis. Laboratory research use only.
Compliance
For in‑vitro research only.
Products supplied for laboratory research. Not for human or veterinary consumption. Buyer assumes all responsibility.
Read compliance →Questions
Retatrutide 20mg — frequently asked
What is Retatrutide?+
Retatrutide is a triple GIP/GLP-1/glucagon receptor agonist peptide, supplied as a 20mg lyophilised research vial. HPLC verified to >=99% purity with a lot-matched certificate of analysis. Aussie Peptides supplies Retatrutide strictly as an in-vitro laboratory reference material — it is not a therapeutic good and is not for human or veterinary use.
How pure is Aussie Peptides Retatrutide?+
Each Retatrutide lot is analysed by RP-HPLC for purity and by mass spectrometry for identity, and is released against a ≥99% purity specification. The result belongs to that lot: the number printed on your vial maps to its own Certificate of Analysis, so the figure can be recorded alongside your experimental data rather than assumed.
How is Retatrutide 20mg reconstituted and stored in the lab?+
3 mL bacteriostatic or sterile water for a standard bench stock That gives a working stock of roughly ≈ 6.7 mg/mL (20 mg ÷ 3 mL). Reconstituted vials are held at 2–8 °c, upright, protected from light, and use reconstituted stock within 21–28 days at 2–8 °c; freeze single-use aliquots at −20 °c for longer holds Sealed lyophilised 20mg vials are stable long-term at -20°C.
Is it legal to buy Retatrutide in Australia?+
Retatrutide is supplied in Australia for in-vitro laboratory research only. It is not approved by the TGA as a therapeutic good and is not sold for human or veterinary consumption. Purchasers must be 18 or over and are responsible for handling, storage and disposal under their own institutional and legal requirements.
How much is Retatrutide 20mg and how fast does it ship?+
Retatrutide 20mg is $299.00. It is in stock and dispatched same business day on orders placed before 12pm AEST. Shipping is A$12.95 express Australia-wide and free over A$199, sent discreetly packaged and fully tracked, typically 1–3 business days.
What does the research on Retatrutide investigate?+
Published work on this class focuses on incretin receptor signalling — GLP-1, GIP and glucagon pathways — in cell and animal models. Nothing on this page is a dosing protocol, medical advice, or a claim of therapeutic benefit — it summarises what the published literature examines.
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