MOTS-c Dosage Calculator

Last updated: 2026-11-10

Sources checked: 2026-11-10

📌At a Glance: MOTS-c Reconstitution Arithmetic

Mitochondrial-Derived Peptide: MOTS-c is a 16-amino-acid peptide encoded within mitochondrial 12S rRNA; it is an investigational compound with no approved human pharmaceutical products.
Milligram-Scale Concentrations: Research vials are distributed in milligram sizes (10 mg, 20 mg, and 40 mg). A single syringe unit represents 50 mcg to 400 mcg of active peptide.
Syringe Barrel-Fit Dynamics: Large milligram test amounts (such as 2 mg to 4 mg) produce large volumetric draws (40 to 80 units), requiring careful matching to 0.5 mL (50U) or 1.0 mL (100U) syringe barrels.
Syringe Standard: All volumetric conversions assume a standard U-100 insulin syringe (100 units = 1.0 mL, or 0.01 mL per unit graduation mark).

⚖️Regulatory & Compound Status

Verified: 2026-11-10

MOTS-c is an unapproved investigational research peptide with no FDA approvals, no approved therapeutic indications, and no authorization for human clinical prescription or compounding under Section 503A or 503B of the FD&C Act. The World Anti-Doping Agency (WADA) explicitly prohibits MOTS-c under Section S4 (Hormone and Metabolic Modulators) of the International Standard Prohibited List. Published scientific literature is primarily preclinical (evaluating AMPK phosphorylation and metabolic regulation in rodent and cell culture models; Cell Metabolism 2015). Lyophilized powder vials sold online are unapproved research chemicals.

Official Sources:The Mitochondrial-Derived Peptide MOTS-c Promotes Metabolic Homeostasis,World Anti-Doping Code International Standard: Prohibited List (S2: Peptide Hormones),Safety Risks Associated with Certain Bulk Drug Substances Nominated for 503A/503B Compounding

ℹ️What This Tool Cannot Tell You

This calculator cannot provide medical advice, diagnosis, or clinical administration schedules.
It cannot provide metabolic protocol recommendations or athletic performance guidance.
It cannot verify the chemical purity, sterility, or peptide content of unapproved research chemicals.
It cannot guarantee solution stability beyond documented USP <797> multi-dose preservative limits.

This tool converts volumetric liquid measurements and syringe tick marks only. It does not provide medical guidance, dosing schedules, or clinical administration protocols. Review our Medical & Research Disclaimer.

What Is MOTS-c Reconstitution Arithmetic?

MOTS-c (mitochondrial open reading frame of the 12S rRNA type-c, often written as MOTS c) is a 16-amino-acid bioactive peptide encoded directly within the mitochondrial genome rather than nuclear DNA. First characterized in 2015 (Cell Metabolism, DOI: 10.1016/j.cmet.2015.02.009), preclinical investigations reveal that MOTS-c acts as an endocrine and cellular signal transducer, translocating to the nucleus during metabolic stress to activate 5′-AMP-activated protein kinase (AMPK) and regulate sphingolipid, dicarboxylic acid, and glucose pathways.

Academic and laboratory facilities obtain MOTS-c as a freeze-dried, solid-cake lyophilized powder in glass serum vials. Reconstitution is the precise chemical dissolution of this cake in a sterile diluent, primarily bacteriostatic water (sterile water for injection containing 0.9% benzyl alcohol). Because MOTS-c vials contain milligram-scale masses (10 mg to 40 mg), our mots-c 10mg dosage calculator provides deterministic mathematical conversions across common vial sizes and syringe barrel capacities.

MOTS-c Dosage Chart

This reference chart translates intended milligram test masses into volumetric draw units on a standard U-100 syringe across 10 mg, 20 mg, and 40 mg research vials. These figures represent illustrative mathematical conversions across standardized benchmark test amounts (1.0 mg, 2.0 mg, 3.0 mg, 4.0 mg, 5.0 mg) and do not represent clinical advice, medical protocols, or therapeutic recommendations.

Vial Size	Bac Water Added	Concentration	Example Amount	Draw Units (U-100)
10 mg	2.0 mL	5.0 mg/mL	1.0 mg	20.0 Units
10 mg	2.0 mL	5.0 mg/mL	2.0 mg	40.0 Units
10 mg	2.0 mL	5.0 mg/mL	3.0 mg	60.0 Units
10 mg	2.0 mL	5.0 mg/mL	4.0 mg	80.0 Units
20 mg	2.0 mL	10.0 mg/mL	2.0 mg	20.0 Units
20 mg	2.0 mL	10.0 mg/mL	4.0 mg	40.0 Units
20 mg	3.0 mL	6.67 mg/mL	2.0 mg	30.0 Units
40 mg	2.0 mL	20.0 mg/mL	2.0 mg	10.0 Units

MOTS-c Vial Size and Diluent Conversion Matrix

The table below outlines resulting solution concentrations, unit potencies, and syringe units per 1.0 mg across standard research vials (10 mg, 20 mg, 40 mg) and diluent volumes (1 mL, 2 mL, 3 mL). For practical reconstitution guidance, read our dedicated tutorial on how to reconstitute MOTS-c.

Vial Mass (mg)	Diluent Added (mL)	Concentration (mg/mL)	Potency per Unit (mcg/U)	Units per 1.0 mg Draw
10 mg	1.0 mL	10.00 mg/mL	100.0 mcg/U	10.0 Units
10 mg	2.0 mL	5.00 mg/mL	50.0 mcg/U	20.0 Units
10 mg	3.0 mL	3.33 mg/mL	33.3 mcg/U	30.0 Units
20 mg	1.0 mL	20.00 mg/mL	200.0 mcg/U	5.0 Units
20 mg	2.0 mL	10.00 mg/mL	100.0 mcg/U	10.0 Units
20 mg	3.0 mL	6.67 mg/mL	66.7 mcg/U	15.0 Units
40 mg	1.0 mL	40.00 mg/mL	400.0 mcg/U	2.5 Units
40 mg	2.0 mL	20.00 mg/mL	200.0 mcg/U	5.0 Units
40 mg	3.0 mL	13.33 mg/mL	133.3 mcg/U	7.5 Units

Worked Calculation Example: 10 mg Vial with 2.0 mL Diluent

Example Parameters:

Vial Mass: 10.0 mg solid lyophilized cake
Diluent Added: 2.0 mL sterile Bacteriostatic Water
Target Test Amount: 2.0 mg (2,000 mcg) illustrative calculation
Syringe Standard: U-100 insulin syringe (100 units = 1.0 mL, or 0.01 mL per unit)

Step-by-Step Calculation:

Step 1: Calculate solution concentration = 10.0 mg ÷ 2.0 mL = 5.0 mg/mL (5,000 mcg/mL).
Step 2: Determine volumetric draw = 2.0 mg ÷ 5.0 mg/mL = 0.40 mL.
Step 3: Convert volume to U-100 syringe units = 0.40 mL × 100 units/mL = 40.0 Units.
Step 4: Check syringe barrel compatibility: 40 units fits comfortably within a standard 0.5 mL (50-unit) syringe barrel.
Step 5: Mathematical Back-Check: 40.0 units × 0.01 mL/unit = 0.40 mL. 0.40 mL × 5.0 mg/mL = 2.0 mg. Result confirms target mass exactly.

Result:

Drawing 40.0 units on a U-100 syringe delivers exactly 2.0 mg of MOTS-c.

Note: If this same 10 mg vial were reconstituted with 1.0 mL of water (10 mg/mL), a 2.0 mg draw would equal 20.0 units (0.20 mL), which fits in a smaller 0.3 mL syringe.

Units-per-Milligram Dynamics and Large Milligram Vials

Calculating volume for MOTS-c differs fundamentally from microgram-dosed peptides due to two physical factors:

1. The Units-Per-Milligram Formula:
• For milligram-scale peptides, a useful metric is units per milligram: Units per 1.0 mg = 100 ÷ Concentration (mg/mL), which simplifies to (100 × Diluent Volume in mL) ÷ Vial Mass in mg.
• When more water is added to a vial, the solution becomes more dilute, meaning more syringe units are required to deliver each milligram. For example, in a 10 mg vial: 1.0 mL yields 10 units/mg, 2.0 mL yields 20 units/mg, and 3.0 mL yields 30 units/mg.

2. Why Larger Vials Yield Fewer Units per Milligram:
• Conversely, increasing the vial mass while keeping diluent volume fixed makes the solution more concentrated, resulting in fewer units per milligram. At 2.0 mL of water: a 10 mg vial requires 20 units/mg, a 20 mg vial requires 10 units/mg, and a 40 mg vial requires only 5 units/mg.
• On a 40 mg vial in 1.0 mL of water, the concentration reaches 40 mg/mL, where a single unit contains 400 mcg. Measuring 1.0 mg requires just 2.5 units—introducing severe optical measurement error. Reconstituting 20 mg or 40 mg vials with 2.0 mL to 3.0 mL expands draw marks into visually readable ranges.

For a step-by-step primer on handling dilution calculations, consult our tutorial on how to calculate peptide dosage.

Syringe Barrel-Fit and Volume Compatibility (for 10 mg Vial in 2.0 mL Diluent)

Because MOTS-c test amounts are measured in milligrams, draw volumes increase substantially as target amounts scale. This table shows how our barrel-fit algorithm matches test draws to standard U-100 syringe barrels (30U, 50U, and 100U).

Target Test Amount	Concentration	Draw Volume (mL)	U-100 Units	Smallest Fitting Syringe Barrel
1.0 mg (1,000 mcg)	5.0 mg/mL	0.20 mL	20.0 Units	0.3 mL (30-unit) Barrel
2.0 mg (2,000 mcg)	5.0 mg/mL	0.40 mL	40.0 Units	0.5 mL (50-unit) Barrel
3.0 mg (3,000 mcg)	5.0 mg/mL	0.60 mL	60.0 Units	1.0 mL (100-unit) Barrel
4.0 mg (4,000 mcg)	5.0 mg/mL	0.80 mL	80.0 Units	1.0 mL (100-unit) Barrel
5.0 mg (5,000 mcg)	5.0 mg/mL	1.00 mL	100.0 Units	1.0 mL (100-unit) Full Barrel Capacity

MOTS-c Chemical Stability & Laboratory Handling

MOTS-c is a 16-amino-acid peptide (Met-Arg-Trp-Gln-Glu-Met-Gly-Tyr-Ile-Phe-Tyr-Pro-Arg-Lys-Leu-Arg, MW ~2,174.6 g/mol) containing two methionine residues that can be susceptible to oxidation if exposed to strong oxidizers or prolonged ambient air. When reconstituting, inject bacteriostatic water slowly against the interior glass wall so the liquid flows down smoothly. Swirl the vial in slow circular motions until completely dissolved into a clear, colorless liquid. Do not shake vigorously.

Store reconstituted solutions upright in continuous refrigeration between 2°C and 8°C (USP <659>). Under FDA multi-dose sterile vial guidance and USP <797> standards, multi-dose vials preserved with 0.9% benzyl alcohol should be discarded within 28 days of first puncture unless product labeling specifies a shorter limit. Never freeze liquid reconstituted peptide solutions. For complete standard operating procedures, review our step-by-step guide on how to reconstitute peptides safely.

Common Calculation & Measurement Mistakes

⚠️Treating MOTS-c as a Microgram-Scale Compound

Assuming MOTS-c is dosed in micrograms like BPC-157 (such as 250 mcg) leads to extreme under-calculation. MOTS-c laboratory protocols operate in whole milligrams (1.0 mg to 5.0 mg).

⚠️Ignoring Syringe Barrel Capacity

Drawing 3.0 mg from a 10 mg/2 mL vial requires 60 units (0.60 mL). Attempting to draw 60 units with a 0.5 mL (50-unit) syringe will pull the plunger completely out of the barrel. Always confirm your syringe barrel capacity matches your calculated volume.

⚠️Assuming Larger Vials Give More Units per Milligram

Larger vials produce higher concentrations at the same water volume, meaning each unit contains MORE peptide, and FEWER units are needed per milligram. Reconstituting a 40 mg vial in 2 mL yields 20 mg/mL (5 units per mg), whereas a 10 mg vial yields 5 mg/mL (20 units per mg).

⚠️Using a U-40 Syringe for U-100 Calculations

U-100 syringes contain 100 units per mL (0.01 mL/unit). U-40 veterinary syringes contain 40 units per mL (0.025 mL/unit). Drawing 40 units on a U-40 syringe delivers 1.0 mL instead of 0.40 mL—causing an unintentional 2.5× volumetric error.

Comparing MOTS-c with Metabolic and Secretagogue Peptides

MOTS-c represents a unique mitochondrial peptide class. Understanding how its reconstitution arithmetic compares to neighboring compounds clarifies laboratory volume dynamics:

• Compared to AOD-9604: AOD-9604 is a growth hormone fragment calculated in milligram quantities from 2 mg or 5 mg vials. Because MOTS-c vials often contain 10 mg to 40 mg, MOTS-c solutions require larger diluent volumes to preserve graduation measurement accuracy.
• Compared to Tesamorelin: Tesamorelin is an FDA-approved GHRH analogue supplied in 1 mg and 2 mg vials. MOTS-c remains an unapproved investigational research chemical without standardized commercial pharmaceutical presentations.
• Compared to PT-141: PT-141 is a cyclic melanocortin agonist with pre-filled commercial versions (Vyleesi), whereas MOTS-c is distributed strictly as lyophilized dry powder cakes for academic study.

Reconstitution Protocol Summary

Lyophilized MOTS-c cake dissolves readily in sterile bacteriostatic water under aseptic laboratory conditions.

Syringe Reading Diagram

U-100 Syringe Graduation & Measurement Line (MOTS-c)

Standard Reconstitution Protocol

Review our standardized 5-step sterile reconstitution guide for full vial preparation, alcohol disinfection, and needle safety protocols.

Universal Step-by-Step Reconstitution Guide→

❄️ Storage & Shelf-Life Notice (MOTS-c)

Store reconstituted MOTS-c solutions refrigerated at 2°C–8°C (36°F–46°F). Protect from prolonged direct light exposure. Never freeze reconstituted liquid solutions.

⚠️ Common Preparation Mistakes to Avoid

Common errors include treating MOTS-c as a microgram peptide, ignoring syringe barrel capacity, and confusing U-40 with U-100 syringes.

MOTS-c Dosing FAQ

Why does adding more water increase the units per milligram?↓

Because concentration equals mass divided by volume. Adding more water dilutes the solution, so more volume (and therefore more syringe units) is required to contain each milligram of peptide. For a 10 mg vial, adding 1 mL yields 10 units/mg, while adding 2 mL yields 20 units/mg.

Why is a single syringe unit so potent in MOTS-c solutions?↓

Because MOTS-c vials contain high total masses (10 mg to 40 mg). In a 40 mg vial dissolved in 1.0 mL of water (40 mg/mL), each individual U-100 syringe unit contains 400 mcg of peptide. Adding 2.0 mL or 3.0 mL of water lowers unit potency into more manageable measurement increments.

What syringe barrel size is recommended for a 40-unit MOTS-c draw?↓

A 40-unit draw equals 0.40 mL of fluid. A standard 0.5 mL (50-unit) U-100 syringe barrel provides optimal line spacing and visual clarity for a 40-unit draw. A 1.0 mL syringe can also be used.

Is MOTS-c calculated in micrograms or milligrams?↓

MOTS-c research protocols evaluate whole milligram amounts (typically 1.0 mg to 5.0 mg), unlike compounds like BPC-157 which are calculated in micrograms (250 mcg = 0.25 mg).

Can reconstituted MOTS-c solution be stored at room temperature?↓

No. Once reconstituted, aqueous peptide solutions are susceptible to thermal degradation and hydrolysis. Reconstituted MOTS-c must be stored continuously refrigerated at 2°C–8°C (36°F–46°F).

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