MOTS-c Reconstitution Calculator
MOTS-c is supplied as a lyophilised powder in milligram vials. Enter your vial amount, the bacteriostatic water you are adding and your dose to convert it into exact insulin syringe units.
100 units per mL — pick the syringe you have.
Draw to
BAC water
on a U-100 insulin syringe
Drag the syringe to set your dose, or type the values above.
Enter your vial amount and dose, then type the bacteriostatic water or drag the syringe to see the exact units to draw.
Vial sizes and water volumes are shown for convenience — the dose field is deliberately not prefilled and has no suggestions. Enter your own numbers.
Never do this math twice.
The Pep AI app remembers your vials and doses, shows an interactive syringe you draw to, counts down the doses left in each vial, and reminds you when it's time. Free on iOS and Android.
Concentration, volume, units
The dose in the example is arbitrary — it exists to demonstrate the three steps:
1. Concentration
Vial amount ÷ water added. A 10 mg vial with 2 mL of water is 5 mg/mL.
2. Volume per dose
Your dose ÷ concentration. A 5 mg dose at 5 mg/mL is 1 mL.
3. Units to draw
Volume per dose × 100 for a U-100 syringe (or × 40 for a U-40). 1 mL on a U-100 syringe is 100 units.
Worked example
You have a 10 mg vial, you want a 5 mg dose, and you add 2 mL of bacteriostatic water. Concentration is 10 ÷ 2 = 5 mg/mL. Volume per dose is 5 ÷ 5 = 1 mL. On a U-100 syringe that's 1 × 100 = 100 units, and the vial holds 2 doses.
Doses per vial matter more here
MOTS-c is generally used on a multi-day rather than daily interval, which means a single reconstituted vial can be in use for a long stretch. That makes the doses-per-vial figure and the vial's shelf life the numbers worth watching, rather than the units-to-draw alone.
Both clocks that end a reconstituted vial — chemical degradation and the preservative's finite capacity against repeated entries — run regardless of how much solution is left. See how long a reconstituted vial lasts.
Frequently asked questions
This calculator is provided for informational and educational purposes only and is not medical advice. Always confirm dosing with a qualified healthcare professional and double-check your own measurements before administering anything.
Built by the Pep AI team.