Retatrutide 10-Vial Kit: Kit Sizes, Concentration Math, and Where to Buy
Reviewed by the VendPeptides Editorial Team. Written from product labeling, the batch certificate of analysis and published literature. Last updated September 2026.
The Retatrutide 10-Vial Kit is a laboratory research package containing ten vials of retatrutide, a synthetic GLP-1/GIP/glucagon receptor triple agonist.
Retatrutide has been studied in a phase 2 trial for obesity and related metabolic endpoints, and ongoing studies are listed on ClinicalTrials.gov.
The compound is also known by the code names LY3437943 and GGG tri-agonist, and the kit is sold with vial strengths of 5 mg, 10 mg, 15 mg, 20 mg, 30 mg, 40 mg, 50 mg, and 60 mg.
This guide covers what the Retatrutide 10-Vial Kit is, how to calculate concentration by vial size, safe laboratory handling, and where to buy it. For research purposes only. Not for human consumption.
What is the Retatrutide 10-Vial Kit?
The Retatrutide 10-Vial Kit is a bulk laboratory package containing ten individual vials of retatrutide, a triple agonist peptide that acts at the GLP-1, GIP, and glucagon receptors.
Each kit is sold by total peptide mass: a 5 mg kit contains ten 5 mg vials (50 mg total), a 10 mg kit contains ten 10 mg vials (100 mg total), and so on up to a 60 mg kit with 600 mg total. The compound is also known as LY3437943 or GGG tri-agonist, and its CAS number is 2381089-83-2.
For research purposes only. Not for human consumption. Always refer to the vial label and the batch certificate of analysis (COA) for the exact identity, purity, and mass of the material in hand.
Retatrutide 10-Vial Kit, LY3437943 and GGG tri-agonist: are they the same?
Yes. LY3437943 is the internal research code used by the developer, and GGG tri-agonist is a descriptive shorthand for the GLP-1/GIP/glucagon triple agonist mechanism; all three names refer to the same molecule, CAS 2381089-83-2.
The Retatrutide 10-Vial Kit is simply a packaging format of that same compound, so the name on the kit label and the name in the published literature describe the same research material.
For research purposes only. Not for human consumption.
What has the Retatrutide 10-Vial Kit been studied for?
Retatrutide has been studied in a phase 2 clinical trial for obesity and related metabolic endpoints, and additional studies are registered on ClinicalTrials.gov.
The Retatrutide 10-Vial Kit is a research chemical. It is not approved for any medical or veterinary purpose as sold, and it is not for human or veterinary use.
For research purposes only. Not for human consumption. Readers should consult the published literature and the batch certificate of analysis (COA) supplied with the kit for identity, purity, and study context.
Retatrutide 10-Vial Kit reconstitution and concentration by vial size
Adding 1 mL (1,000 µL) of bacteriostatic water to a 5 mg vial gives 5 mg/mL, and the same arithmetic scales to every vial size in the kit.
| Vial size | 10-vial kit total | Diluent added | Resulting concentration | µg per µL |
|---|---|---|---|---|
| 5 mg | 50 mg | 1 mL (1,000 µL) | 5 mg/mL | 5 µg/µL |
| 10 mg | 100 mg | 2 mL (2,000 µL) | 5 mg/mL | 5 µg/µL |
| 20 mg | 200 mg | 2 mL (2,000 µL) | 10 mg/mL | 10 µg/µL |
| 30 mg | 300 mg | 3 mL (3,000 µL) | 10 mg/mL | 10 µg/µL |
| 60 mg | 600 mg | 3 mL (3,000 µL) | 20 mg/mL | 20 µg/µL |
The vial label and the batch certificate of analysis (COA) take priority over any table; if the label states a different fill mass or diluent volume, follow the label.
Retatrutide 10-Vial Kit 10mg vial reconstitution
A 10 mg vial reconstituted with 2 mL (2,000 µL) of bacteriostatic water yields 5 mg/mL, which is 5 µg/µL.
If a different working concentration is needed, divide the peptide mass by the diluent volume in mL; for example, 10 mg in 1 mL (1,000 µL) gives 10 mg/mL.
For research purposes only. Not for human consumption. Confirm the fill mass on the vial label and the COA before calculating.
Retatrutide 10-Vial Kit 5mg vial reconstitution
A 5 mg vial reconstituted with 1 mL (1,000 µL) of bacteriostatic water yields 5 mg/mL, which is 5 µg/µL.
Because the 5 mg kit contains ten such vials, the total peptide mass in the kit is 50 mg; concentration math is performed per vial, not per kit.
Refer to the vial label and the batch COA for the exact fill mass and recommended diluent volume.
How long does reconstituted Retatrutide 10-Vial Kit stay stable?
Stability after reconstitution depends on storage temperature, buffer, and handling, and the batch certificate of analysis (COA) is the authoritative source for the specific lot.
In general laboratory practice, reconstituted peptide solutions are kept cold and protected from light, but the exact holding time should be taken from the COA or the published literature rather than assumed.
For research purposes only. Not for human consumption.
How to handle the Retatrutide 10-Vial Kit safely in the laboratory
- Put on a lab coat, nitrile gloves, and eye protection before opening the kit.
- Work in a clean, designated area and wipe the surface with a suitable disinfectant.
- Inspect each vial for cracks, missing caps, or label damage before use.
- Swab the vial stopper with an alcohol wipe and allow it to dry completely.
- Add the chosen volume of bacteriostatic water slowly down the inside wall of the vial to avoid foaming.
- Swirl or roll the vial gently until the powder dissolves; do not shake vigorously.
- Label every prepared vial with the compound name, concentration, date, and your initials, then store it as directed on the COA.
Warning: Poor sterile technique or unlabeled vials can contaminate the material and invalidate your experiment, so always work cleanly and label everything.
Is the Retatrutide 10-Vial Kit the same as Tirzepatide?
No. Retatrutide is a triple agonist at the GLP-1, GIP, and glucagon receptors, while tirzepatide is a dual GLP-1/GIP agonist; they are different molecules with different receptor profiles and different CAS numbers.
The Retatrutide 10-Vial Kit contains retatrutide (CAS 2381089-83-2), whereas tirzepatide kits contain tirzepatide. The two should never be substituted for one another in a research protocol.
For research purposes only. Not for human consumption. Check the vial label and the batch certificate of analysis (COA) to confirm which compound you have.
Is the Retatrutide 10-Vial Kit safe for humans?
No. The Retatrutide 10-Vial Kit is sold for research purposes only and is not for human consumption; it is not approved for any medical or veterinary purpose as sold.
FDA guidance on research chemicals and 'not for human consumption' labeling makes clear that such materials are not drugs and must not be introduced into the human body.
For research purposes only. Not for human consumption. Any question about human health belongs with a licensed medical professional, not with a research vial.
Can the Retatrutide 10-Vial Kit be used for pets or animals?
No. The Retatrutide 10-Vial Kit is a research chemical and is not a veterinary product; it is not approved for any veterinary purpose.
For research purposes only. Not for human consumption. If you have a question about an animal's health, consult a licensed veterinarian.
Laboratory use of any research peptide should follow your institution's animal-care and biosafety rules, and the batch COA should be reviewed before any study begins.
Where to buy the Retatrutide 10-Vial Kit (5 mg to 60 mg)
The Retatrutide 10-Vial Kit is available from VendPeptides in eight kit strengths: 5 mg (50 mg total), 10 mg (100 mg total), 15 mg (150 mg total), 20 mg (200 mg total), 30 mg (300 mg total), 40 mg (400 mg total), 50 mg (500 mg total), and 60 mg (600 mg total).
Every kit ships from a US warehouse with a batch certificate of analysis (COA) and an expiry date on the label. For smaller quantities, a Retatrutide Single Vial is also available in the same strengths.
Related research materials include the Tirzepatide 10-Vial Bulk Kit TR and the Semaglutide 10-Pack Kits SM, and the full range is listed in the Metabolic Research Peptides collection.
For research purposes only. Not for human consumption. Always confirm the fill mass and purity on the batch COA before starting an experiment.
Frequently asked questions
Is the Retatrutide 10-Vial Kit safe for humans?
No. It is sold for research purposes only and is not for human consumption; it is not approved for any medical purpose as sold. Any human health question should go to a licensed medical professional.
Is the Retatrutide 10-Vial Kit the same as Tirzepatide?
No. Retatrutide is a GLP-1/GIP/glucagon triple agonist, while tirzepatide is a dual GLP-1/GIP agonist. They are different molecules and should not be substituted for one another.
How do I reconstitute a 10 mg vial from the Retatrutide 10-Vial Kit?
Add 2 mL (2,000 µL) of bacteriostatic water to a 10 mg vial to obtain 5 mg/mL, or 5 µg/µL. Confirm the fill mass on the vial label and the batch COA before calculating.
Can the Retatrutide 10-Vial Kit be used for pets or animals?
No. It is a research chemical, not a veterinary product, and is not approved for any veterinary purpose. Consult a licensed veterinarian for any animal health question.
Is the Retatrutide 10-Vial Kit the same as LY3437943 or GGG tri-agonist?
Yes. LY3437943 and GGG tri-agonist are alternative names for the same molecule, retatrutide, CAS 2381089-83-2. The 10-vial kit is simply a packaging format of that compound.
Is the Retatrutide 10-Vial Kit a peptide, and what class is it?
Yes. Retatrutide is a synthetic peptide and a GLP-1/GIP/glucagon receptor triple agonist. Its identity is confirmed by the batch certificate of analysis (COA).
Can you still buy the Retatrutide 10-Vial Kit?
Yes. The kit is available in eight strengths from 5 mg to 60 mg per vial, with ten vials per kit, shipped from a US warehouse with a batch COA and expiry on the label. For research purposes only. Not for human consumption.
Sources and further reading
- Jastreboff AM et al. Triple-Hormone-Receptor Agonist Retatrutide for Obesity — A Phase 2 Trial. NEJM 2023.
- ClinicalTrials.gov — Retatrutide (LY3437943) studies
- PubChem — Retatrutide
Disclaimer. This article is educational and describes laboratory handling and published literature only. It is not medical or veterinary advice and is not a substitute for a licensed professional. For research purposes only. Not for human consumption. Products are sold to qualified researchers for in-vitro and laboratory research, are not approved drugs, foods, cosmetics or devices, and are not for human or animal use. This article was written with AI assistance and reviewed by a member of the VendPeptides Editorial Team.