MOTS-c: The Exercise in a Peptide
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MOTS-c is a 16-amino acid mitochondrial-derived peptide, discovered in 2015 by Dr. Pinchas Cohen's lab at USC, that acts as an exercise mimetic by activating AMPK — the cellular energy sensor. Research dosing is typically 10 mg via injection. It improves glucose metabolism, enhances physical performance, and reduces age-related metabolic decline in preclinical models.
in Sequence
(typical)
AMPK Pathway
📋 On this page
What Is MOTS-c?
MOTS-c is a 16-amino acid mitochondrial-derived peptide (MDP) discovered in 2015 by Dr. Pinchas Cohen's lab at USC. It acts as an "exercise mimetic" — triggering metabolic effects similar to exercise.
MOTS-c activates AMPK (AMP-activated protein kinase), the same pathway activated by exercise. This triggers glucose uptake and metabolic reprogramming.
Called "exercise in a peptide," MOTS-c replicates many metabolic benefits of exercise without physical activity. Improves physical performance in mouse studies.
Improves glucose uptake in skeletal muscle and enhances insulin sensitivity. Shows promise for metabolic syndrome and type 2 diabetes.
MOTS-c levels decline with age. Supplementation may counteract age-related metabolic decline and mitochondrial dysfunction.
What the Research Shows
Preclinical and early human data on MOTS-c.
The Exercise Signal Is Encoded in Your Mitochondria — and It's Fading
MOTS-c is not just another peptide. It is a signal your own mitochondria release during exercise — and the levels you produce decline sharply with age.
In humans, skeletal muscle MOTS-c expression jumped about 11.9-fold after a single bout of exercise. The peptide isn't passively present — exercise induces it, and the induced peptide is part of what makes the workout work.
In aged mice given MOTS-c, treadmill running capacity roughly doubled. Young, middle-aged, and old cohorts all ran significantly further — an effect that has not been replicated by most candidate "exercise mimetics."
In mice fed a high-fat diet, MOTS-c administration reversed weight gain and restored insulin sensitivity. This is a metabolic rescue effect, not just metabolic maintenance.
Under metabolic stress, MOTS-c translocates from mitochondria to the cell nucleus, where it binds DNA and regulates nuclear gene expression — turning on stress-response pathways the cell uses to adapt to exercise and caloric stress.
Study Citations
Key Takeaways
- 16-amino acid mitochondrial-derived peptide
- Discovered by Pinchas Cohen's lab at USC (2015)
- Activates AMPK pathway
- Improves glucose metabolism
- Human skeletal muscle MOTS-c rises ~11.9× after a single bout of exercise
- Doubled treadmill running capacity in aged mice; young + middle-aged cohorts also ran further
- Reversed diet-induced obesity and insulin resistance in mice
- Translocates to the nucleus and reprograms stress-response gene expression
- Levels decline sharply with age — by the 60s the exercise-induced spike is dramatically attenuated
- Limited human clinical trial data
- Optimal dosing protocols not established
- Long-term safety in humans unknown
- Bioavailability and delivery methods
- Therapeutic efficacy in humans unproven
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This page is for educational and informational purposes only. MOTS-c is a research peptide not approved by the FDA. Most data comes from preclinical studies. Always consult a qualified healthcare provider before starting any new substance.