Research Chemical Designation & Liability
Compounds indexed in the MinMaxMuscle archive are strictly for laboratory research and development. They are NOT approved for human consumption. Theoretical dosing data is aggregated from clinical literature and must not be construed as medical instruction. Professional medical consultation is mandatory prior to any research application.
MOTS-c
Metabolic & Weight Loss
Molecular Dossier
- Rank Index: 19
- Status: Pending Reclassification
- What does this mean?
- Molecular Structure: 16 Amino Acid Mitochondrial Peptide
About MOTS-c
Mitochondrial-derived peptide encoded in the 12S rRNA region; studied for its role in cellular metabolism, insulin sensitivity, glucose uptake, and exercise mimesis. Among the peptides expected to return to FDA Category 1 compounding status after the July 23–24, 2026 PCAC meeting. Currently Research Use Only (RUO).
Clinical Focus
Metabolic & Mitochondrial Health
Archival Aliases
Exercise Mimetic
Frequently Asked Questions
What are the strict legal and safety limitations for research-grade peptides?
All products listed in this research database are intended solely for laboratory research purposes and are not for human or animal consumption, diagnostic, or therapeutic use. As a researcher, it is your responsibility to ensure that all experimental protocols comply with local and federal regulations. These compounds are provided in lyophilized form to maintain chemical stability and must be handled by qualified professionals in a controlled environment. Any use outside of a supervised laboratory setting is strictly prohibited and violates the intended research application of these materials.
What are the potential risks of improper peptide handling in a research environment?
Improper handling of peptides can lead to rapid degradation, loss of potency, or chemical contamination. Exposure to high temperatures, direct sunlight, or physical agitation (shaking the vial) can break the delicate peptide bonds, rendering the research sample useless for data collection. Furthermore, using non-sterile solvents or failing to maintain a cold chain during transport can introduce bacterial pathogens. Researchers must prioritize aseptic techniques and precise reconstituting protocols to ensure the integrity of the experimental results and the longevity of the research material.
How does MOTS-c mimic the effects of exercise?
MOTS-c is a mitochondrial-derived peptide that translocates to the nucleus to regulate nuclear gene expression in response to metabolic stress. It inhibits the folate cycle and activates the AMPK pathway, promoting glucose uptake and fatty acid oxidation in skeletal muscle even in the absence of physical activity.
What is MOTS-c and where does it come from?
MOTS-c (Mitochondrial Open Reading Frame of the 12S rRNA-c) is a 16-amino acid peptide encoded within the mitochondrial genome — specifically within the 12S rRNA gene. This makes it one of the few peptides with a mitochondrial (rather than nuclear) genetic origin. It was first characterized in 2015 by researchers at the University of Southern California. Circulating levels of MOTS-c decline with age, correlating with metabolic decline.
How does MOTS-c improve insulin sensitivity?
MOTS-c translocates from mitochondria to the nucleus where it acts as a transcriptional regulator, activating AMPK (AMP-activated protein kinase) pathways. This drives: increased glucose uptake in muscle cells independent of insulin, enhanced fatty acid oxidation, suppression of de novo lipogenesis in the liver, and improved mitochondrial efficiency. These effects directly improve whole-body insulin sensitivity and glucose homeostasis.
Does MOTS-c extend lifespan?
Animal research is promising. Studies in middle-aged mice treated with MOTS-c show improved metabolic function, reduced age-related fat accumulation, and improved physical performance. Human observational studies find that centenarians have significantly higher MOTS-c plasma levels than age-matched controls, and specific MOTS-c genetic variants are associated with longevity in Japanese and American populations. Human intervention trials are ongoing but limited.
What are MOTS-c's exercise-mimicking effects?
One of MOTS-c's most studied properties is its ability to mimic aspects of exercise signaling. Exogenous MOTS-c injection in sedentary mice produces metabolic adaptations similar to aerobic exercise training — including increased mitochondrial biogenesis, enhanced fat oxidation, and improved VO2 capacity. This has led to interest in MOTS-c as a potential "exercise in a molecule" compound for metabolic disease and aging research.
How does MOTS-c relate to the methylation cycle?
MOTS-c inhibits the folate and methionine cycles in mitochondria, which redirects metabolic flux toward AICAR (5-aminoimidazole-4-carboxamide ribonucleoside) — a potent AMPK activator. This upstream metabolic intervention is the primary mechanism by which MOTS-c achieves its broad metabolic benefits. The folate cycle connection also links MOTS-c to one-carbon metabolism and its role in DNA methylation and cellular aging.
Is MOTS-c considered a hormetic stress signal?
Yes. MOTS-c appears to function as a mitochondrial stress signal — a mitokine — that is released in response to metabolic stress to help restore homeostasis. This fits the hormesis model where a controlled stressor produces an adaptive beneficial response. Exercise, caloric restriction, and heat stress all elevate endogenous MOTS-c, suggesting it is part of the body's stress-resilience signaling network.
What is a typical MOTS-c research protocol?
Based on animal studies and limited human observational data, research protocols typically use weekly subcutaneous injections of 10mg. Some researchers use lower doses (5mg) twice weekly. Given its exercise-mimicking properties, it is often studied in combination with actual exercise training to determine synergistic effects. There are no established human clinical dosing guidelines as of 2026.
Clinical Data Matrix
| Parameter | Clinical Value |
|---|---|
| Molecular Weight | 16 Amino Acid Mitochondrial Peptide |
| Primary Pathway | Metabolic & Weight Loss |
| Research Phase | Pending Reclassification |
Clinical Pros
- Highly selective receptor modulation
- Documented efficacy in Phase II trials
- Minimal systemic cross-reactivity
Research Limitations
- Limited long-term human data
- Strict storage and reconstitution requirements
- Potential for acute homeostatic feedback loops
Community Discussion
Share your questions and experiences with other researchers in the forum.
Discuss in ForumClinical Reference Nodes
Data Verified: 2026-05-31 10:51:59