What is MOTS-C?
MOTS-C is a mitochondrial-derived peptide that has generated significant interest for its role in metabolism, exercise physiology, and healthy aging. Unlike most peptides encoded in nuclear DNA, MOTS-C is encoded within mitochondrial DNA and functions as a signaling molecule that helps regulate cellular energy balance. Discovered in 2015, MOTS-C challenged long-standing assumptions about mitochondria, revealing that they actively communicate with the rest of the body through peptide signaling.
What is a Mitochondrial Peptide?
Mitochondria are best known as the “powerhouses” of the cell, producing energy in the form of ATP. Recent research has shown that mitochondria also produce small peptides that act as metabolic messengers. MOTS-C is one such peptide, influencing how cells respond to nutrient availability, stress, and aging.
How Does MOTS-C Work?
MOTS-C activates pathways involved in glucose uptake and fat metabolism, particularly through activation of AMP-activated protein kinase (AMPK), a key energy sensor in cells. When AMPK is activated, cells increase glucose utilization and fat burning while reducing energy storage. Bottom line, promising research reveals that MOTS-C leads to increased fat and glucose burning.
Studies show that exercise naturally increases circulating MOTS-C levels, suggesting it may play a role in mediating some of the health benefits of physical activity. MOTS-C promises to deliver some of the effects of exercising without actually exercising.
What is MOTS-C Used for?
Potential research applications of MOTS-C include:
- Obesity and weight management
- Insulin sensitivity and metabolic health
- Exercise performance and endurance
- Age-related metabolic decline
Side Effects of MOTS-C
MOTS-C has shown low toxicity in preclinical studies. However, long-term human safety data is limited, and clinical use remains investigational.
MOTS-C Dosing Protocol (for Research)
No dosing algorithm has been established for MOTS-C. One example of a research protocol uses a fixed dose, with no up-titration:
| Phase | Dose & frequency |
|---|---|
| All weeks | 5 mg twice weekly |
Shown for education. A licensed clinician should set any actual dose. Compare protocols across peptides in the peptide dosage chart.
Common questions about MOTS-c
What is MOTS-c?
MOTS-C is a mitochondrial-derived peptide that has generated significant interest for its role in metabolism, exercise physiology, and healthy aging. Unlike most peptides encoded in nuclear DNA, MOTS-C is encoded within mitochondrial DNA and functions as a signaling molecule that helps regulate cellular energy balance.
What is MOTS-c used for?
Areas studied include: Obesity and weight management; Insulin sensitivity and metabolic health; Exercise performance and endurance; Age-related metabolic decline.
How does MOTS-c work?
MOTS-C activates pathways involved in glucose uptake and fat metabolism, particularly through activation of AMP-activated protein kinase (AMPK), a key energy sensor in cells. When AMPK is activated, cells increase glucose utilization and fat burning while reducing energy storage.
What are the side effects of MOTS-c?
MOTS-C has shown low toxicity in preclinical studies. However, long-term human safety data is limited, and clinical use remains investigational.
What is the dosage of MOTS-c?
One commonly referenced research protocol is: 5 mg twice weekly, every week (no up-titration). Shown for education only; a licensed clinician should set any actual dose. See the dosing table.
How do you mix (reconstitute) MOTS-c?
Wipe the vial tops with alcohol, add bacteriostatic water slowly so it runs down the inside of the glass, then roll the vial gently until the powder dissolves; don’t shake it. See the step-by-step guide with diagrams for the pen and syringe methods.
How much bacteriostatic water do you add to MOTS-c?
There is no single correct amount. We recommend 2.1 mL: about 0.1 mL is lost during transfer, leaving roughly 2.0 mL of usable solution. You can add more or less (most peptide vials hold up to 3 mL); just enter the amount in the dose calculator. See the step-by-step mixing guide.
Is MOTS-c FDA-approved?
No. MOTS-c is not FDA-approved in the US (status as of October 2026).
References
- Lee C, Zeng J, et al. The mitochondrial-derived peptide MOTS-c promotes metabolic homeostasis and reduces obesity and insulin resistance. Cell Metab. 2015 Mar 3;21(3):443-54. doi: 10.1016/j.cmet.2015.02.009. View source
- Reynolds JC, et al. MOTS-c is an exercise-induced mitochondrial-encoded regulator of age-dependent physical decline and muscle homeostasis. Nat Commun. 2021 Jan 20;12(1):470. doi: 10.1038/s41467-020-20790-0. View source