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Longevity
MOTS-c: the mitochondrial 'exercise' peptide, benefits & research
Research purposes only Checked against official sources Oct 16, 2026
Quick facts
- What it is: a small peptide made by your mitochondria.
- Status: research purposes only. Not FDA-approved.
- Research: exciting early research in mice. A Phase 2a human trial is registered.
- Dosage: no established human dose.
- Why it's popular: exciting metabolism results in mice, and human trials are starting.
What is MOTS-c?
MOTS-c is a short peptide your mitochondria make. Mitochondria are the energy factories in your cells. In mice, MOTS-c changes how the body handles sugar and fat, which is why fans call it "exercise in a vial."
Is MOTS-c FDA-approved?
Not FDA-approved. In April 2026 it came off FDA's "significant safety risks" compounding list because the nomination was withdrawn. That is not an approval. In July 2026 FDA's compounding advisory committee narrowly voted to recommend it for the 503A bulks list, against the written advice of FDA staff (FDA advisory committee materials). The vote is non-binding. As of October 16, 2026, it has not been added to the list, and FDA's interim peptide compounding policy is still under White House review. It is banned at all times in sport: the 2026 WADA Prohibited List names MOTS-c under S4 (metabolic modulators).
MOTS-c dosage: what we actually know
There is no established human dose. There are no published human treatment trials to take one from.
- Online numbers come from mouse studies dosed by body weight, or from sellers.
- A registered Phase 2a trial (NCT07505745) may give the first real human data.
Why the numbers online don't agree
- Many online "protocols" are converted from animal studies, where doses are set by body weight in rats or mice. Those don't translate directly to people.
- The few human reports use different routes and settings, with no agreed standard.
- Unregulated products can vary in what they actually contain.
- Sellers and influencers often share numbers without sources.
See Why is peptide info so confusing?
Good questions to bring to a clinician
- What is actually in the product, and has it been third-party tested?
- Is there any human evidence for my specific goal, or only animal studies?
- Could it interact with my other medicines or conditions?
- Is there an FDA-approved option for what I'm trying to treat?
- How would we know if it's working, or causing harm?
What the research shows
- No published human treatment trials that we could find in PubMed as of October 2026. A Phase 2a trial in prediabetes is registered (NCT07505745) but has no results.
- What human data exists is observational. One 2026 study found people with obesity had higher blood MOTS-c than lean people, and levels didn't change after bariatric surgery (J Clin Transl Endocrinol). That's measuring it, not giving it.
- Most claims come from lab and mouse studies, for example its immune effects (eLife, 2026).
New to these terms? See the glossary.
MOTS-c FAQ
What is the MOTS-c dosage?
There's no established human dose because it's research-only. Human trials are just starting.
Is MOTS-c FDA-approved?
No. An FDA advisory panel narrowly recommended it for a compounding list in July 2026, but that's non-binding and isn't drug approval.
Is MOTS-c banned for athletes?
Yes. The 2026 WADA Prohibited List names MOTS-c under S4 metabolic modulators.
Does MOTS-c work like exercise?
In mice it improved how the body handles sugar and fat, which is where the nickname comes from. Human trials will show how much carries over.
Research purposes only. Not FDA-approved for human use, and products vary in quality. Findings above are from the studies cited.
Not medical advice. Education only. We don't sell anything or tell you what to take. Label doses are there so you can follow along with your prescriber. Talk to a licensed clinician about your health.
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