What is mazdutide?
People searching for mazdutide dosage usually hold a vial and need the syringe math, so that is what this page covers. Mazdutide is a synthetic peptide that acts on two receptors at once: the GLP-1 receptor and the glucagon receptor. That makes it a dual agonist, a different profile from single GLP-1 agonists such as semaglutide. It was discovered at Eli Lilly, where it carried the code LY3305677, and is developed in China by Innovent Biologics under the code IBI362.
As a mazdutide peptide it is modified with a fatty-acid side chain, a common way to make a peptide last longer in circulation. Clinical trials have looked at it in relation to body weight and blood sugar. This page makes no claims about effects in people. It handles one job: the math behind mazdutide reconstitution with bacteriostatic water and reading the result on a U-100 syringe.
How much BAC water for a mazdutide vial?
Research-labeled vials are most often sold as 5 mg, mazdutide 10mg or 20 mg of freeze-dried powder. The mg in the vial stays fixed; the BAC water volume you add sets the concentration. The chart shows micrograms per unit on a U-100 syringe for common water volumes.
| BAC water | 5 mg vial | 10 mg vial | 20 mg vial |
|---|---|---|---|
| 1 mL | 50 mcg/unit 5 mg/mL | 100 mcg/unit 10 mg/mL | 200 mcg/unit 20 mg/mL |
| 2 mL | 25 mcg/unit 2.5 mg/mL | 50 mcg/unit 5 mg/mL | 100 mcg/unit 10 mg/mL |
| 3 mL | 16.67 mcg/unit 1.667 mg/mL | 33.33 mcg/unit 3.333 mg/mL | 66.67 mcg/unit 6.667 mg/mL |
| 4 mL | 12.5 mcg/unit 1.25 mg/mL | 25 mcg/unit 2.5 mg/mL | 50 mcg/unit 5 mg/mL |
Each cell shows mcg per unit on a U-100 syringe (100 units = 1 mL) and the resulting concentration.
Read across a row to compare vial sizes at the same water volume, or down a column to see how more water thins out the same powder. A 20 mg vial with little water packs a lot of peptide into every unit, which makes small readings on the syringe matter more. There is no single correct volume; round figures simply give cleaner numbers. The BAC water to peptide ratio guide explains the ratio behind the chart.
Worked example: mazdutide reconstitution in syringe units
The calculator runs three steps. Vial mg ÷ water mL gives the concentration. The amount you enter ÷ that concentration gives the volume in mL. Volume in mL × 100 gives U-100 units. For example, if the amount you already have is 1 mg, and the vial is a 10 mg vial with 2 mL of water added:
The math: 10 mg ÷ 2 mL = 5 mg/mL (5,000 mcg/mL), which is 50 mcg per unit. 1 mg ÷ 5,000 mcg/mL = 0.2 mL = 20 units on a U-100 syringe.
That amount is an arbitrary figure picked because it comes out clean. It is not a suggestion. Mazdutide amounts are often written in milligrams rather than micrograms, so check which unit you select in the calculator; 1 mg = 1,000 mcg, and mixing the two up changes the result a thousandfold. The mg to mcg conversion guide covers that step.
Mazdutide dosage: what this calculator does and does not do
A mazdutide dosage calculator on this site answers one question: how many units on the syringe line up with an amount you already have, for your vial size and the water you actually added. It does not set, suggest or check a dose, a schedule, a titration or a frequency. Any mazdutide dosage figures you have seen elsewhere come from trial protocols or labeling that this page does not reproduce; amounts are a matter for product labeling and a qualified professional.
Units are the same size on every U-100 syringe: 100 units = 1 mL and 1 unit = 0.01 mL. A 0.3 mL or 0.5 mL syringe just holds fewer of them. If a result needs more units than your syringe holds, the math is still right; it simply exceeds that syringe’s capacity. You can check the calculator math by hand with the same formula.
Mazdutide vs survodutide
Mazdutide is often confused with survodutide because both are GLP-1 and glucagon receptor dual agonists and their names sound alike. They are separate molecules with different sequences, developed by different companies: mazdutide by Innovent Biologics under license from Eli Lilly, survodutide by Boehringer Ingelheim. A vial of one is not a substitute for the other, and their mg labels are not interchangeable. Always enter the compound and vial size that match your own label.
Mazdutide reconstitution notes from suppliers
Supplier instructions differ, so the label on your vial comes first. Some suppliers specify bacteriostatic water; others list sterile water. Some product sheets note that the powder should be allowed to dissolve with gentle swirling rather than shaking, and many give a storage temperature for the dry vial and a separate one after mixing. Some list a water volume for each vial size, which only changes the concentration.
Whatever volume you use, enter that exact figure in the calculator so the unit count matches what is actually in the vial. A correct calculation cannot confirm a vial’s identity, purity or sterility; it assumes the printed mg is accurate.
Is mazdutide FDA-approved?
No. Mazdutide is not an FDA-approved drug in the United States, and research-labeled vials sold online are not an approved medicine. There is no US-labeled product with set strengths to compare a research vial against, so the only numbers you can rely on are the mg printed on the vial and the water volume you measured. Treat every result on this page as arithmetic, not as a statement that a product is safe or suitable for any use.
Mazdutide FAQ
How much BAC water do you add to mazdutide 10mg?
There is no single required volume. The chart shows how 1, 2, 3 and 4 mL change the micrograms per unit. Follow the product labeling for the diluent and volume, then enter the volume you used in the calculator.
Does this page give a mazdutide dosage?
No. It converts an amount you already have into mL and U-100 syringe units for your vial size and water volume. It does not recommend a dose, schedule, titration or frequency.
Is mazdutide the same as survodutide?
No. Both are GLP-1 and glucagon receptor dual agonists, but they are different molecules from different developers and are sold as separate products.
Is mazdutide a GLP-1 peptide?
It acts on the GLP-1 receptor and also on the glucagon receptor, so it is described as a dual agonist rather than a GLP-1-only peptide.
Can I use the calculator for a mazdutide 20mg vial?
Yes. Enter 20 mg as the vial size and the water volume you added, and the calculator works out the concentration and units the same way.