Quick math example
A 10 mg vial mixed with 2 mL gives 5 mg/mL. A 5 mg dose is 1.0 mL, which equals 100 units on a U-100 syringe.
MOTS-c 40 mg vial reference
U100 units to draw for each common MOTS-c dose, by vial size, reconstituted with 2 mL of bacteriostatic water. Change the water volume in the calculator above to recompute for your own setup.
| Vial | Concentration | 2.5 mg | 5 mg | 10 mg |
|---|---|---|---|---|
| 40 mg | 20 mg/mL | 12.5 u(0.13 mL) | 25 u(0.25 mL) | 50 u(0.5 mL) |
Educational reference only — not a dose recommendation. Units assume a U100 insulin syringe (100 units = 1 mL on U-100). Always confirm against your own vial, diluent, and clinician or pharmacy instructions.
40 mg MOTS-c vial examples
A 40 mg vial holds four times the peptide of a 10 mg vial, so at the same water volume it is four times as concentrated. In 2 mL it gives 20 mg/mL, so a 5 mg dose is 0.25 mL, or 25 units on a U-100 syringe.
If you want the more familiar draw sizes from a 10 mg vial, use proportionally more water. 8 mL of BAC water on a 40 mg vial gives 5 mg/mL — the same concentration as 10 mg in 2 mL — so a 5 mg dose returns to 1 mL (100 units).
- 40 mg / 2 mL = 20 mg/mL → 5 mg = 0.25 mL = 25 units
- 40 mg / 4 mL = 10 mg/mL → 5 mg = 0.50 mL = 50 units
- 40 mg / 8 mL = 5 mg/mL → 5 mg = 1.0 mL = 100 units
Is a 40 mg MOTS-c vial worth it?
40 mg is a bulk size — you are buying more compound per vial, which lowers the cost per milligram but commits you to keeping a larger reconstituted volume stable for longer. At a 5 mg dose, a 40 mg vial is about eight doses; at 10 mg, four.
The trade-off is in-use life. Once reconstituted, a vial should be refrigerated, protected from light, and used within your supplier's beyond-use window regardless of how many doses remain. A larger vial only saves money if you will actually use it before that window closes.
- 40 mg at 5 mg/dose ≈ 8 doses; at 10 mg/dose ≈ 4 doses
- Lower cost per mg, but a longer in-use period to manage
- Store at 2–8°C, upright, out of light; honour the beyond-use date
How the MOTS-c calculation works
MOTS-c is typically labelled in milligrams per vial. The calculator first divides the vial mg amount by your BAC water volume to find concentration, then divides your target dose by that concentration.
Once concentration is known, every dose becomes target mg divided by mg per mL.
- 10 mg vial = 10,000 mcg total
- 10,000 mcg / 2 mL = 5,000 mcg per mL
- 5,000 mcg target = 1.0 mL draw
MOTS-c 10 mg vial with 2 mL example
A 10 mg MOTS-c vial mixed with 2 mL gives 5 mg/mL, or 5,000 mcg/mL.
A 5 mg dose is 5,000 mcg, which at this concentration is a full 1.0 mL — 100 units, the entire length of a standard 1 mL U-100 syringe. A 2.5 mg dose would be half that: 0.5 mL, or 50 units.
- 10 mg / 2 mL = 5 mg/mL
- 5 mg / 5 mg per mL = 1.0 mL = 100 U-100 units
- 2.5 mg / 5 mg per mL = 0.5 mL = 50 U-100 units
Reduce the draw with less water or a stronger vial
Because MOTS-c doses are in the multi-milligram range, a dilute vial can push a single dose to the full syringe. Reconstituting with less water raises the concentration and shrinks the draw.
The same 10 mg vial in 1 mL gives 10 mg/mL, so a 5 mg dose drops to 0.5 mL (50 units) instead of a full mL. Always enter your actual figures so the units match your setup.
- 10 mg / 1 mL = 10 mg/mL, so a 5 mg dose = 0.5 mL = 50 units
- Less BAC water = higher concentration = smaller draw
- Keep the draw within your syringe's capacity