MOTS-c
Mitochondrial Open Reading Frame of the 12S rRNA Type-c
Also called MOTS-c, mitochondrial ORF of the 12S rRNA type-c, mitochondrial-derived peptide
The mitochondrial peptide
MOTS-c is a tiny peptide your mitochondria make themselves, and one of the few coded by mitochondrial DNA rather than the DNA in your cell nucleus. It behaves like a chemical version of exercise: it flips the same energy switch a hard workout does. Levels fall as you age, which is why it gets talked about for both metabolism and longevity.
A peptide written not in your own genome but in the tiny separate one your mitochondria carry, a leftover from when they were free-living bacteria. It behaves like an exercise signal: it switches on the same fuel-burning pathway a hard workout does. Levels fall with age, which is why it turns up in longevity conversations, and essentially all of the good data is in mice.
- Route
- Subcutaneous
- Typical dose
- 5 mg 1x/week
- Availability
- Research-only
Human trials published, with more underway
247 papers · 5 clinical trials
What people use MOTS-c for
Reported uses, roughly in order of how often they are the reason someone goes looking. Whether it works for any of them is a separate question, answered under each one.
- Metabolic health and insulin sensitivity
- The best-supported use. It activates AMPK, the switch your cells throw when energy runs low, which is the same one exercise and metformin hit. Animal work shows better glucose handling and less fat accumulation.
- Endurance and training capacity
- The reason athletes look it up. Mice given it ran further. Whether that translates to a trained human is untested, and the honest answer is that nobody knows yet.
- Ageing
- Levels drop with age, and people with naturally higher levels tend to live longer. That is a correlation and it is worth noting rather than acting on.
Mechanism of Action
How MOTS-c works
Your mitochondria have their own DNA. Not a copy of yours, an entirely separate ring of it, left over from a time when they were free-living bacteria that got absorbed into a larger cell and never left.
MOTS-c is written in that ring. It is one of a small handful of peptides your mitochondria encode themselves, and that is genuinely unusual: almost everything else in your cells is transcribed from the genome in the nucleus.
What it appears to do
When cells are short of fuel, they flip a master switch that stops storing energy and starts burning it. Exercise flips that switch. So does going without food. MOTS-c appears to flip the same one, which is why you will see it described as exercise in a vial.
The more striking finding is where it goes. Under metabolic stress, MOTS-c travels out of the mitochondria and into the cell nucleus, where it influences which genes get read. That is the mitochondria talking back to the cell that houses them, rather than just taking orders, and it is a genuinely new idea in cell biology rather than a marketing line.
The honest position
The headline result, in mice, was that it improved insulin sensitivity and reduced diet-induced obesity. That was a real finding published in a serious journal, and it is a mouse.
Levels do fall with age in people, and lower levels track with metabolic problems. What has not happened is a trial showing that giving it to humans changes any of that. The gap between "this molecule is interesting" and "you should inject it" is the whole story here.
MOTS-c dosage calculator
Opens at 5 mg, from the doses reported for MOTS-c. Change any box to match your own vial. It works out where to pull the plunger to.
How much is in the vial?
Printed on the label, in milligrams
How much water did you add?
Bacteriostatic water, in millilitres
What dose are you taking?
The dose you already intend to use
Which syringe?
Barrel size, printed on the wrapper
Draw to
Too much
That dose is 1 mL, more than a 0.5 mL syringe holds. Use a larger syringe, or add less water.
- Strength once mixed
- 5 mg/mL
- Doses in the vial
- 2
10 mg in 2 mL makes 5 mg/mL. A 5 mg dose is 1 mL of that, which is more than the barrel holds.
This is arithmetic, not advice. It converts a dose you already have into a mark on a syringe. It does not tell you what dose to take, and MOTS-c is not prescribed by us. Dosing belongs with a qualified clinician.
MOTS-c side effects: what people reported
Very little to report, which is partly because it is closely related to something your body already makes and partly because it has not been studied in many people.
What people report
- Injection-site redness
- Flushing or feeling warm shortly after a dose
- Tiredness on the first few doses
Worth keeping an eye on
- Because it acts on the same energy switch as some diabetes drugs, anyone already on those should be watching their blood sugar rather than assuming nothing will change
Source: Mostly animal work plus early human safety observations. This is a summary of published findings, not a complete safety profile and not medical advice. MOTS-c should only be considered with a qualified clinician who knows your history.
Your Genetics & MOTS-c
The genes involved in how MOTS-c works
MOTS-c works through the receptors these genes build, and the genes vary from person to person. Researchers have linked some of that variation to differences in how people respond. A DNA report tells you which versions you carry.
This mitochondrial DNA variant occurs within the gene encoding MOTS-c itself, producing a K14Q substitution. Found at higher frequency in East Asian populations, it alters MOTS-c function and is associated with increased risk of type 2 diabetes and reduced exercise capacity.
PPARGC1A · ••
The Gly482Ser variant in PGC-1alpha reduces mitochondrial biogenesis capacity. Since MOTS-c promotes mitochondrial function through AMPK-PGC-1alpha signaling, Ser482 carriers with lower baseline mitochondrial capacity may see proportionally greater metabolic improvement.
Variants in the AMPK alpha-2 catalytic subunit affect AMPK activation threshold and signaling intensity. Since MOTS-c's primary mechanism is AMPK activation, these variants directly modulate downstream metabolic response.
The dots after each gene are where your own result goes. Your report fills them in with the two letters you carry at that position.
Which variants do you carry?
Upload your DNA data, or get tested through our partner, to find out.
Commonly combined with
What MOTS-c is most often paired with, and why:
Epithalon
Mitochondrial Longevity StackEmerging EvidenceEpitalon (Ala-Glu-Asp-Gly)
A synthetic tetrapeptide based on the natural pineal gland peptide epithalamin. Epithalon activates telomerase, the enzyme that maintains telomere length, potentially slowing cellular aging. Discovered by Professor Vladimir Khavinson, it remains one of the most studied anti-aging peptides in gerontology.
3
Gene variants
20+
Studies
SS-31
Complete Mitochondrial StackModerate EvidenceSS-31 (Elamipretide / Bendavia / MTP-131)
A peptide that goes to one specific place: the inner membrane of your mitochondria, where it binds a fat called cardiolipin. It is the rare compound here that is a genuine pharmaceutical, tested in real trials, and its honest record includes a large trial that failed. Also known as elamipretide.
4
Gene variants
50+
Studies
AOD-9604
Metabolic Optimization StackEmerging EvidenceAdvanced Obesity Drug 9604 (hGH Fragment 177-191)
AOD-9604 is a fragment cut out of growth hormone, specifically the piece thought to handle fat burning, with the rest of the molecule left behind. The idea was elegant: get the fat-loss effect without the blood-sugar and growth effects of the whole hormone. It is also one of the very few peptides in this space that was put through a proper randomised human trial, which is the part vendors do not mention, because it did not beat the placebo. Development stopped there.
4
Gene variants
15+
Studies
Sourcing & access
Where to buy MOTS-c
MOTS-c is sold as a research compound, not a licensed medicine, so quality and legal status vary widely by country and vendor. If you're sourcing it, treat independent purity testing as non-negotiable.
- Insist on a recent third-party Certificate of Analysis (COA) for the exact batch — labs like Janoshik verify purity and identity.
- Check the legal status where you live before ordering — it differs from country to country.
- Reconstitute correctly with bacteriostatic water and start at a conservative dose.
Before you buy: see whether your DNA actually responds to MOTS-c, and at what dose. Analyze my DNA — $99 →
Educational information only, not medical advice. Some outbound links are affiliate links (disclosed, at no extra cost to you). Most peptides are not FDA-approved — consult a qualified professional and check your local laws before purchasing.
Worth knowing before you consider MOTS-c
Interactions and situations where there is a specific reason to be careful. Where the honest answer is that nobody has studied something, it says so and says what that leaves open.
- Almost all of the promising work is in mice
- The endurance and lifespan results everyone quotes come from animals. That does not make them worthless, it makes them a reason to be interested rather than confident.
- It is not a substitute for training
- It flips the same switch exercise does. It does not appear to flip it as hard, and it does nothing for the tendons, heart and skill that training also builds.
The evidence behind MOTS-c
Almost everything below is a mouse. MOTS-c is a genuinely interesting piece of biology, and the trial record for taking it as a supplement is empty: no randomised trial has tested whether giving it to people changes anything. Levels do fall with age in humans, which is an observation about your own biology rather than evidence for injecting more.
The literature, counted
Counted in PubMed on 3 August 2026 for MOTS-c. Every figure links to the search that produced it, so you can re-run it. “Tagged human” is not the same as a human trial: that tag also covers work on human cells and reviews discussing people, which is why the trial count is given separately.
Studied in animals
2 of 3Results in animals do not automatically hold in people.Cell Metabolism · 2015
AnimalThe mitochondrial-derived peptide MOTS-c promotes metabolic homeostasis and reduces obesity and insulin resistance
Lee C, Zeng J, Drew BG, et al.
The paper that started the field. In mice, MOTS-c improved insulin sensitivity and prevented diet-induced obesity, acting through the same fuel-burning switch that exercise flips. A serious result in a serious journal, in mice.
The mitochondrial-derived peptide MOTS-c promotes metabolic homeostasis and reduces obesity and insulin resistance — source for MOTS-c (opens in a new tab)Read the paperCell Metabolism · 2018
AnimalThe Mitochondrial-Encoded Peptide MOTS-c Translocates to the Nucleus to Regulate Nuclear Gene Expression in Response to Metabolic Stress
Kim KH, Son JM, Benayoun BA, Lee C
The finding that makes this compound conceptually interesting: under stress, MOTS-c leaves the mitochondria and enters the cell nucleus to influence which genes are read. Mitochondria answering back, rather than only taking orders.
The Mitochondrial-Encoded Peptide MOTS-c Translocates to the Nucleus to Regulate Nuclear Gene Expression in Response to Metabolic Stress — source for MOTS-c (opens in a new tab)Read the paper
Every source behind this page42 more
- The mitochondrial-derived peptide MOTS-c relieves hyperglycemia and insulin resistance in gestational diabetes mellitusYin Y, Pan Y, He J, et al. · Pharmacological Research · 2022Animal
- MOTS-c, the Most Recent Mitochondrial Derived Peptide in Human Aging and Age-Related DiseasesMohtashami Z, Singh MK, Salimiaghdam N, et al. · International Journal of Molecular Sciences · 2022Review
Everything we cite for MOTS-c, including animal work and early research. Each link goes to the source itself, so you can judge it rather than take our word for it.
Last updated · literature counts verified against PubMed on
Frequently Asked Questions
What is MOTS-c used for?
MOTS-c is used as a metabolic and longevity peptide. It activates AMPK — the same pathway triggered by exercise and caloric restriction — improving insulin sensitivity, fat metabolism, and mitochondrial function. It is sometimes called an 'exercise mimetic' because it recapitulates many molecular effects of physical training.
Does genetics affect MOTS-c response?
Yes, uniquely so. MOTS-c is encoded by mitochondrial DNA, and the m.1382A>C variant in MT-RNR1 actually alters the MOTS-c peptide itself (K14Q). This variant, common in East Asian populations, is linked to metabolic differences. Nuclear variants in PPARGC1A and PRKAA2 also affect downstream AMPK and mitochondrial biogenesis pathways.
How is MOTS-c different from other longevity peptides?
MOTS-c is unique because it is encoded by mitochondrial DNA, not nuclear DNA — making it one of only a few known mitochondrial-derived peptides. While Epithalon targets telomeres and SS-31 targets the inner mitochondrial membrane, MOTS-c acts as a metabolic signal activating AMPK to improve whole-body energy regulation.
Learn more about MOTS-c
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Your next move
Two ways forward with MOTS-c.
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How does MOTS-c relate to your genes?
Your report scores MOTS-c against your receptor, pharmacogene and pathway variants and shows the genetic markers relevant to it, with commonly cited dosing information to review with a clinician.
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