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Overview
What is MOTS-c?
MOTS-c is a 16-amino acid mitochondrial-derived peptide encoded by the mitochondrial genome. It acts as a mitohormone that regulates metabolic homeostasis, enhances insulin sensitivity, and promotes longevity. MOTS-c operates through the Folate-AICAR-AMPK pathway and can translocate to the nucleus under metabolic stress to regulate gene expression.
Key Benefits
Enhanced insulin sensitivity, improved glucose metabolism, activation of AMPK pathway, mitochondrial function optimization, exercise performance enhancement, and potential longevity benefits.
Mechanism of Action
MOTS-c operates through the Folate-AICAR-AMPK pathway, inhibiting the folate cycle and leading to AMPK activation. Under metabolic stress, it translocates to the nucleus and binds to stress-response transcription factors (NRF2, ATF1/ATF7) to regulate gene expression involved in metabolism, antioxidant response, and cellular stress adaptation.
Molecular Information
Weight
2,174.6 Da
Length
16 amino acids
Type
Mitochondrial-derived peptide (MDP)
Amino Acid Sequence:
MRWQEMGYIFYPRKLR (Met-Arg-Trp-Gln-Glu-Met-Gly-Tyr-Ile-Phe-Tyr-Pro-Arg-Lys-Leu-Arg)
* Encoded by mitochondrial DNA (MT-RNR1 gene) within the 12S rRNA
Pharmacokinetics
Research Indications
Insulin Resistance
Improves insulin sensitivity by ~30% in animal studies through AMPK activation. Enhances glucose uptake in skeletal muscle and improves glucose tolerance.
Type 2 Diabetes
Clinical trials show improved glucose homeostasis. Restores metabolic function through enhanced insulin receptor sensitization and AMPK-mediated metabolic regulation.
Obesity Prevention
Prevents obesity despite identical caloric intake in animal models. Promotes fatty acid oxidation and thermogenesis through mitochondrial activation.
Research Protocols
Disclaimer
These are commonly discussed research protocols and not medical advice. Consult a healthcare provider before use.
Timing
Optimal timing is morning before exercise. Exercise enhances endogenous MOTS-c production by 11.9-fold in muscle tissue. AMPK activation occurs within 30 minutes of administration.
Peptide Interactions
How to Reconstitute
Important
Always use bacteriostatic water (BAC). Sterile technique is essential.
Allow vial to reach room temperature (15-20 minutes)
Calculate required BAC water volume using calculator below
Draw BAC water into syringe
Inject slowly down vial side (not directly onto powder)
Gently swirl until dissolved (never shake vigorously)
Store reconstituted solution at 2-8°C and use within 14 days
Quality Indicators
White to Off-White Powder
Lyophilized powder should appear uniform without discoloration, indicating proper storage and purity >95%.
Clear Solution After Reconstitution
Should be colorless and clear after reconstitution without particles, cloudiness, or foaming.
Sequence Verification
Confirm peptide is MRWQEMGYIFYPRKLR sequence. Request Certificate of Analysis (CoA) showing purity >95% by RP-HPLC.
Limited Human Data
Clinical safety data is limited. Start with conservative doses (5-10mg) and monitor carefully.
No FDA Approval
Not FDA-approved for human therapeutic use. Available only as research peptide.
WADA Banned Substance
Prohibited by World Anti-Doping Agency as AMPK activator for athletic performance enhancement.
What to Expect
- Week 1-2: AMPK pathway activation, initial glucose tolerance improvements
- Week 2-4: Enhanced exercise capacity, improved insulin sensitivity
- Week 4-8: Sustained metabolic benefits, potential body composition improvements
- Week 8-12: Maximum mitochondrial function enhancement, metabolic flexibility
- Side effects: Generally mild, possible injection site reactions
Side Effects & Safety
- Generally well-tolerated in animal studies with minimal side effects
- Monitor blood glucose if using diabetes medications - may require dose adjustments
- Limited long-term human safety data - use with appropriate medical supervision
- May cause mild injection site reactions (redness, swelling)
- Not recommended during pregnancy or breastfeeding
- Prohibited by WADA for competitive athletes (metabolic modulator)
References
Gestational Diabetes Mellitus (2022)
Yin et al. showed MOTS-c significantly alleviated hyperglycemia in GDM mouse model, improved insulin sensitivity, and reduced birth weight abnormalities. Human study found significantly lower serum MOTS-c levels in GDM patients versus controls.
View Study (opens in new tab) →Acute Exercise Enhancement (2022)
Hyatt et al. showed single dose MOTS-c improved running time by 12% and distance by 15% in untrained mice. Chronic training increased MOTS-c protein expression 1.5-5-fold in muscle tissue, demonstrating both acute and chronic exercise-enhancing effects.
View Study (opens in new tab) →Exercise Performance and Age-Dependent Physical Decline (2021)
Reynolds et al. demonstrated MOTS-c significantly enhanced physical performance in young, middle-aged, and old mice. Exercise induced 11.9-fold increase in skeletal muscle MOTS-c in humans. Acts as mitochondrial-encoded regulator of age-dependent physical performance.
View Study (opens in new tab) →Quick Start Guide
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Community Insights
Self-reported by PepPedia users. Not clinical evidence. Health changes reflect all users, including those taking multiple compounds.
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