Retatrutide Dosage Calculator
Retatrutide is supplied lyophilized in milligram-scale vials, and research amounts are usually specified in milligrams rather than micrograms. Enter your vial strength and diluent volume to convert any target milligram amount into an exact syringe reading.
- Concentration
- 5000 mcg / mL
- Concentration
- 5.00 mg / mL
- Per syringe unit
- 50.0 mcg / unit
- Draws per vial
- 5.0
- Total solution
- 200 units
Every figure below is arithmetic performed in your browser. Nothing here is a protocol, recommendation, or medical guidance — all Ares Research materials are supplied for in-vitro laboratory research only.
HPLC purity and mass-spec identity confirmation, published per batch. US-based tracked shipping.
Milligram-scale math on a U-100 barrel
A 10 mg Retatrutide vial in 2 mL yields 5 mg/mL. A 2 mg draw is therefore 0.4 mL, which is 40 units on a U-100 syringe, and the vial holds five such draws. Reconstituting the same vial in 1 mL doubles the concentration to 10 mg/mL and halves the reading to 20 units — useful when target amounts are large enough that a lower concentration would exceed one barrel.
Why the unit reading is the number to record
Two vials of the same nominal strength can produce completely different syringe readings if they were reconstituted with different diluent volumes. Recording only 'X mg' is ambiguous once a vial is in solution. Record the concentration in mg/mL alongside the unit reading, so the figure is reproducible when a new vial is prepared.
Handling notes
Retatrutide arrives as a lyophilized cake. Introduce bacteriostatic water slowly against the vial wall, allow the cake to dissolve without shaking, and refrigerate once in solution. Ares Research publishes a batch-matched third-party certificate of analysis for every lot, including HPLC purity and mass-spectrometry identity confirmation.
Frequently asked questions
How many units is 2 mg of Retatrutide?
+
With a 10 mg vial reconstituted in 2 mL, the concentration is 5 mg/mL, so a 2 mg draw is 0.4 mL — 40 units on a U-100 insulin syringe. Use 1 mL of diluent instead and the same 2 mg becomes 20 units.
How much bacteriostatic water should I use for a Retatrutide vial?
+
1 mL to 3 mL are common laboratory choices for a 10 mg vial. Because Retatrutide amounts are milligram-scale, a large diluent volume can push a single draw beyond one full U-100 barrel — check the unit reading above before committing to a volume.
How many doses are in a 10 mg Retatrutide vial?
+
A 10 mg vial contains 10,000 mcg, so at 2 mg per draw it holds five draws and at 4 mg per draw it holds two and a half. Diluent volume has no effect on this figure — only the target amount does.
How should reconstituted material be stored?
+
Once reconstituted, most research peptides are held refrigerated at roughly 2–8°C, protected from light, in the original sealed vial. Bacteriostatic water contains 0.9% benzyl alcohol, which suppresses microbial growth in the diluent. Temperature, light exposure, and repeated freeze-thaw cycles all affect stability, so consult the compound-specific certificate of analysis and published stability data.
How do I read a U-100 insulin syringe?
+
A U-100 barrel is graduated in units where 100 units equal 1 mL, so each single-unit mark is 0.01 mL. To convert a volume in mL to units, multiply by 100 — 0.25 mL is 25 units. This calculator reports both figures so you can cross-check the mark against the volume.
Related calculators
Tirzepatide vials → concentration, exact syringe units, and draws per vial.
Semaglutide vials → concentration, syringe units, and draws per vial.
Any vial, any diluent volume, any target amount → concentration, syringe units, doses per vial.