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[Peptide · MOTS-c · 40 mg vial]

MOTS-c 40 mg reconstitution: how much water and how many units

Water volume chart · Syringe units · Draws per vial

Short answer: 10 mL of bacteriostatic water in a 40 mg MOTS-c vial makes 4 mg/mL. On a U-100 insulin syringe (1 mL = 100 units), every 10 units then holds 400 mcg. More water gives a weaker solution and a bigger draw for the same amount; the amount in the vial stays 40 mg.

Water volume chart for a 40 mg vial

40 mg MOTS-c vial, U-100 insulin syringe.
Water addedConcentrationPer 10 unitsPer 1 unit
2 mL20 mg/mL2 mg200 mcg
3 mL13.33 mg/mL1.333 mg133.333 mcg
5 mL8 mg/mL800 mcg80 mcg
10 mL4 mg/mL400 mcg40 mcg

Syringe units by amount

The amounts below are examples to show the conversion, not doses. How much to take is a decision for you and your prescriber.

Units on a U-100 syringe from a 40 mg vial.
Water added500 mcg1 mg2 mg
2 mL2.5 units5 units10 units
3 mL3.8 units7.5 units15 units
5 mL6.3 units12.5 units25 units
10 mL12.5 units25 units50 units

A 40 mg vial holds 80 draws of 500 mcg, 40 draws of 1 mg, 20 draws of 2 mg, no matter how much water you add.

The math

  1. Concentration. 40 mg ÷ 10 mL = 4 mg/mL
  2. Volume to draw. amount ÷ 4 mg/mL = mL
  3. Syringe units. mL × 100 = units

For a different water volume or amount, the free peptide reconstitution calculator works backwards from the amount you want and suggests a water volume that lands on a clean syringe mark.

Other MOTS-c vial sizes

MOTS-c 5 mg · MOTS-c 10 mg

Half-life, time to peak and sources are on the main MOTS-c guide.

Frequently asked questions

How much bacteriostatic water do I add to a 40 mg MOTS-c vial?+
There is no single right amount. More water makes each draw bigger and easier to measure; less water keeps the volume small. With 10 mL, a 40 mg vial is 4 mg/mL, so every 10 units on a U-100 insulin syringe holds 400 mcg. With 2 mL it is 20 mg/mL (2 mg per 10 units). With 3 mL it is 13.33 mg/mL (1.333 mg per 10 units). With 5 mL it is 8 mg/mL (800 mcg per 10 units).
How many units is 1 mg of MOTS-c from a 40 mg vial?+
With 10 mL of water the vial is 4 mg/mL, so 1 mg is 0.25 mL, or 25 units on a U-100 syringe. With a different water volume the units change but the amount does not. The amount is an example for the math, not a recommendation.
How many 1 mg draws are in a 40 mg MOTS-c vial?+
40 (40 mg ÷ 1 mg), whatever volume of water you add. In practice a little is lost to the syringe dead space and the last drops in the vial.

MOTS-c guide · All compound guides · Reconstitution calculator