How to reconstitute MOTS-c

What reconstitution actually is

MOTS-c is sold as a lyophilized powder, meaning the water has been removed under vacuum. The powder is a fixed mass. Adding liquid does not change that mass. It only changes how much liquid that mass is spread through.

That is the whole concept. Concentration is mass divided by volume. Pick the volume and you have chosen the concentration. There is no correct volume in any absolute sense, because the peptide in the vial is the same either way.

What the volume choice does affect is how the number reads on your syringe. A more dilute mix means a given amount of peptide occupies more syringe units, which makes small graduation errors matter less as a fraction of the total. A more concentrated mix means fewer units per draw and less liquid injected. Neither is inherently better. They are different tradeoffs on the same arithmetic.

Reading the concentration table

Three things in the table are worth pulling out.

First, the same concentration appears twice from different starting points. A 5 mg vial in 1 mL and a 10 mg vial in 2 mL both give 5 mg/mL. This is because doubling both the mass and the water leaves the ratio untouched. If you switch from 5 mg vials to 10 mg vials and want your syringe markings to stay familiar, doubling your water volume keeps them identical.

Second, the 3 mL rows produce concentrations that are not round numbers: 1.67 mg/mL and 3.33 mg/mL. Dividing by three rarely lands cleanly. Those figures are rounded, which means any dose calculation built on them carries a small rounding error. If clean syringe numbers matter to you, 1 mL and 2 mL are easier volumes to work with.

Third, the range across the whole table is wide. The most concentrated combination is many times the most dilute. That is why concentration must be written down. A vial of reconstituted MOTS-c looks identical at every concentration in the table. Clear liquid tells you nothing. The only record of what is in the vial is the one you make.

Doing the mixing

Bacteriostatic water is water with a preservative added, which is what distinguishes it from sterile water for injection. It is the standard diluent for multi-dose vials because the vial gets punctured more than once.

Measure the water into a syringe first, then add it to the powder vial. Aim the stream at the glass wall rather than directly onto the powder cake. Peptides are delicate molecules and the physical force of a jet of liquid hitting them is worth avoiding.

Do not shake the vial. Let it sit, or roll it gently between your fingers. The powder mass in these vial sizes is small and usually goes into solution without help. If it does not dissolve, more time is the answer, not more agitation.

Label the vial the moment you finish. Write the vial size, the water volume, the resulting concentration and the date. This site does not tell you how long a reconstituted vial remains usable, because that depends on storage conditions and product quality we cannot assess. The date is still worth recording.

What this page does not tell you

MOTS-c is not approved by any regulator for human use. It is sold as a research chemical.

We hold no reliable human pharmacokinetic data for MOTS-c. This site makes no claim about its half life, how long it takes to clear the body, or whether it accumulates with repeated administration. Anyone stating those figures for this compound with confidence is going beyond what is known.

This page also does not tell you what dose to use, how often, what to expect, or what happens if something goes wrong. There is no medical review behind this site. Those are clinical questions and this is a calculator. If you want an answer to them, ask a doctor, and understand that the honest answer for an unapproved compound may be that nobody knows.

The listings for MOTS-c show dose amounts of 5 mg and 10 mg, which match the vial sizes sold. We report that those figures circulate. We are not endorsing them, and their appearance in a product listing is not evidence of anything.

What we do not know

We hold no reliable human pharmacokinetic data for MOTS-c, so this site makes no claims about its half life, how long it takes to clear, or how it accumulates. The arithmetic below concerns concentration and volume only.

This page answers arithmetic and handling questions. It does not tell you what dose to take, what to expect, or whether anything is appropriate for you, and there is no medical review behind it.

Common questions

How much bacteriostatic water should I add to a MOTS-c vial?

There is no single right answer, because the amount of peptide in the vial does not change with the water volume. The table on this page covers 1, 2 and 3 mL for both vial sizes. Volumes of 1 mL and 2 mL give cleaner concentration figures than 3 mL, which produces repeating decimals.

What concentration does a 10 mg MOTS-c vial give?

It depends entirely on the water. A 10 mg vial gives 10 mg/mL in 1 mL, 5 mg/mL in 2 mL, and 3.33 mg/mL in 3 mL. The vial size alone tells you nothing about concentration.

Can I use regular sterile water instead of bacteriostatic water?

Sterile water for injection contains no preservative. Bacteriostatic water does, which is why it is the usual choice for a vial that will be punctured more than once. This site does not make sterility or safety judgments about either option.

How long does reconstituted MOTS-c last?

We do not have reliable data to answer this. Stability depends on storage temperature, the diluent used, and the quality of the product, none of which we can verify. Record the date you mixed the vial and treat any duration figure you find elsewhere with skepticism.

What is the half life of MOTS-c?

We hold no reliable human pharmacokinetic data for MOTS-c, so this site makes no claim about its half life, clearance or accumulation. The arithmetic here concerns concentration and volume only. Half life figures quoted for this compound elsewhere are not something we can confirm.

Why do a 5 mg vial and a 10 mg vial sometimes give the same concentration?

Because concentration is a ratio. A 5 mg vial in 1 mL and a 10 mg vial in 2 mL both give 5 mg/mL, since doubling the mass and the water leaves the ratio unchanged. This is useful if you switch vial sizes and want your syringe readings to stay the same.