Vial duration

MOTS-c vial duration calculator

Estimate how many weeks one 10 mg MOTS-c vial covers at your dose and weekly cadence.

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Last updated: May 13, 2026

Vial (mg)

Dose (mg)

Doses / week

Total doses

Lasts

0.7 weeks

MOTS-c weeks-of-supply at common cadences

How long one 10 mg MOTS-c vial covers at a 5 mg per dose, for three weekly cadences. Total doses per vial: 2.

Doses per week	Total doses per vial	Weeks of supply
2	2	1.0
3	2	0.7
4	2	0.5

Math weeks-of-supply assumes every dose draws cleanly. Stability typically caps a reconstituted vial at 4–6 weeks of refrigerated use regardless of how much liquid remains.

Worked example

How long one MOTS-c vial lasts, the long version

Total doses in the vial: floor(10 ÷ 5) = 2. The floor matters — a partial dose at the bottom doesn't count.
Cadence: 3 doses per week for MOTS-c at this example step.
Math weeks-of-supply: 2 ÷ 3 = 0.7 weeks of liquid in the vial.
Stability ceiling: most reconstituted peptides are typically used within 4–6 weeks of refrigerated storage. Whichever number is smaller is the one that binds your refill date.
Doubling the dose roughly halves both numbers — and titration usually closes the gap between "math weeks" and "stability weeks" without you noticing.

Scenarios people actually run into

Three things that come up logging MOTS-c

Math says one 10 mg MOTS-c vial covers 0.7 weeks at 5 mg per dose. Stability typically caps a reconstituted vial at 4–6 weeks. Whichever number is smaller is the date on your refill calendar.
Titration up doubles the dose and halves the vial. A 12-week-on-paper vial becomes a 6-week vial the day you step up — order the next vial the same day you take the step.
Shipping windows are the silent third constraint. If your supplier runs 1–3 weeks, the refill order has to leave at least that long before "math weeks" or "stability weeks," whichever is binding.

Same-category neighbor

MOTS-c next to Epithalon

Both sit in the Other bucket — here's the vial duration math side by side on each one's example vial.

	MOTS-c	Epithalon
Vial	10 mg	10 mg
Cadence	3/wk	7/wk
Weeks of supply	0.7	0.3

Want the full breakdown? Epithalon reference →

MOTS-c is a peptide encoded inside the mitochondria that people inject for metabolic effects — energy, insulin sensitivity, and exercise capacity. It signals to muscle and fat tissue to use glucose and fat more efficiently, essentially mimicking some effects of exercise at the cellular level. Animal studies show clear improvements in insulin sensitivity and endurance; human data is early. This page covers reconstitution math and a typical 2–3-times-per-week logging cadence.

Planning MOTS-c vials in real life

MOTS-c vial planning is supply-heavy. A 10 mg vial covers 2 doses at 5 mg, and 3-times-weekly cadence burns one vial every ~5 days. A 4-week cycle uses ~6 vials; a 12-week cycle uses ~17. Single-vial ordering doesn't work — plan in monthly batches at minimum.

Stability is never the binding constraint because no MOTS-c vial survives the 4-6 week window at this cadence. The math here is brutally simple: vial mg ÷ dose mg = doses per vial, and at 2 doses per vial you'll always finish before stability starts to slip. The whole planning question collapses to 'how many vials do I need this month.'

Storage and shelf life for MOTS-c

Before it is mixed with a diluent, the lyophilized powder form of MOTS-c is maintained in refrigerated conditions to preserve its structure. Once reconstituted with bacteriostatic water, the vial containing the solution should also be stored in a refrigerator. Users typically plan to expend the contents of the reconstituted vial over a planned duration, often documented as a period of several weeks, to align with their protocol's schedule.

How the MOTS-c vial duration calculator works

A 10 mg MOTS-c vial covers 2 doses at the 5 mg step. At 3 doses per week that's about 5 days per vial. Most MOTS-c cycles run 4-12 weeks, so plan 6-18 vials per cycle. Stability is rarely the constraint — vials empty fast.

The formula is two divisions. Total doses per vial equals vial mg divided by dose mg, rounded down. Weeks of supply equals total doses divided by doses per week. With a 10 mg vial of MOTS-c, a 5 mg dose, and 3 dose per week, the vial covers 2 doses, or about 0.7 weeks of supply.

The three inputs that move the answer: vial mg (set when you bought the vial), dose mg (set by your protocol step), and doses-per-week (set by the peptide's half-life). Once a vial is reconstituted it also has a stability ceiling — most lyophilized peptides reconstituted in BAC water are typically used within four to six weeks of refrigerated storage, so a vial that mathematically lasts twelve weeks may not last twelve weeks in practice.

Common MOTS-c vial-planning mistakes

Calculating a unit dose based on a generic concentration instead of the specific concentration derived from their vial size and chosen diluent volume.
Reconstituting a 10 mg vial with 2 mL of water and being unprepared for the large 1 mL (100 unit) injection volume required for a 5 mg dose.

Frequently asked questions about MOTS-c vial duration

How does the MOTS-c vial duration calculator estimate weeks of supply?

It floors total doses (vial mg ÷ dose mg) then divides by doses per week. For this MOTS-c example — a 10 mg vial, 5 mg per dose, 3 dose/week — that's floor(10 ÷ 5) ÷ 3 = about 0.7 weeks. Flooring matters: a partial dose left in the vial doesn't count. MOTS-c cycles need bulk vial orders (6+ vials per month) — single-vial ordering creates constant shipping pressure.

Should I plan refills around the math, or around stability?

Whichever runs out first. Math says MOTS-c at the example dose lasts the calendar weeks shown above. Stability says most reconstituted peptides are typically used within 4–6 weeks of refrigerated storage regardless of how much liquid is left. If the math says 12 weeks but stability caps at 5, plan around 5 — and reconstitute the next vial with less water so you finish it in the stability window. MOTS-c cycles need bulk vial orders (6+ vials per month) — single-vial ordering creates constant shipping pressure.

Does titrating the MOTS-c dose up shorten vial life?

Yes, often dramatically. Doubling the dose halves the doses-per-vial. The calculator shows real-time how a step-up changes the weeks-of-supply line, so you can re-time refill orders before a titration event rather than discovering the gap mid-protocol. MOTS-c cycles need bulk vial orders (6+ vials per month) — single-vial ordering creates constant shipping pressure.

What if I take MOTS-c less often than the default cadence here?

Drop the doses-per-week field. With 3 dose/week the example vial lasts about 0.7 weeks; halving the cadence roughly doubles that, but you'll hit the stability ceiling first. A vial that mathematically covers 16 weeks rarely covers 16 weeks in practice. MOTS-c cycles need bulk vial orders (6+ vials per month) — single-vial ordering creates constant shipping pressure.

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