MOTS-C: What It Is and What It’s Known For
MOTS-C is one of the most distinctive peptides in current longevity and metabolic research — not least because of where it comes from. Here is what it is, what it is known for, and what to look for when sourcing it.
What is MOTS-C?
MOTS-C (Mitochondrial Open Reading Frame of the 12S rRNA Type-C) is a small peptide encoded not in the nuclear genome, as most peptides are, but within the mitochondrial genome itself. It was first described in 2015 by researchers at USC. The peptide is 16 amino acids in length and is produced naturally within cells, with levels known to decline with age. It is supplied for research as a synthetic lyophilised powder.
What is it known for?
MOTS-C is primarily studied in the context of metabolic regulation, insulin sensitivity, and longevity biology. Its mitochondrial origin places it at the centre of research on how mitochondria communicate with the rest of the cell — a field sometimes called mitokine research. It is also one of the few peptides studied explicitly in the context of age-related metabolic decline, given the correlation between falling endogenous MOTS-C levels and ageing.
AMPK Activation
MOTS-C has been shown in preclinical models to activate AMP-activated protein kinase (AMPK), a central regulator of cellular energy balance. AMPK activation is associated with improved metabolic flexibility and is a major target in longevity biology.
Insulin Sensitivity Research
Studies in murine models have demonstrated that MOTS-C administration improved insulin sensitivity and prevented diet-induced obesity in high-fat feeding conditions. The mechanism appears to involve modulation of glucose uptake pathways in skeletal muscle.
Exercise Mimicry
MOTS-C levels rise in response to physical exercise in human studies, and some preclinical research has characterised its downstream effects as mimicking aspects of exercise-induced metabolic adaptation — a profile shared with other molecules in the FOXO/AMPK pathway space.
Age-Related Decline
Endogenous MOTS-C levels fall measurably with age in human populations. This has made it a focus of ageing research examining whether restoration of MOTS-C signalling can modify age-associated metabolic deterioration.
Properties Researchers Value
- Mitochondrial origin — its encoding within the mitochondrial genome makes it unique among studied peptides and central to mitokine research.
- AMPK pathway activity — clear mechanistic relevance to energy metabolism and longevity biology.
- Defined structure — 16 amino acids, well-characterised by mass spectrometry.
- Reconstitution — dissolves readily in bacteriostatic water for standard laboratory preparation.
What to Look for When Sourcing
MOTS-C is a shorter peptide, but purity still matters: look for an independent COA confirming HPLC purity (≥98%) and mass spectrometry identity from a named third-party laboratory. See our guide on why COA testing matters for what to check.
Reconstitution
MOTS-C is supplied lyophilised and dissolved in bacteriostatic water before use. Our full guide on how to reconstitute research peptides covers technique, solvents, and storage. For the bacteriostatic water vs acetic acid decision, see this guide. For comparison with NAD+ in the same research space, see MOTS-C vs NAD+. Use our free Peptide Reconstitution Calculator for volume calculations.
Our Approach
At Revial Labs, our MOTS-C 10mg is independently COA tested so researchers can verify identity and purity before use. Every compound we supply is intended strictly for laboratory research.
Compounds Referenced in This Article
This article is provided for educational purposes for laboratory research professionals. All Revial Labs compounds are supplied strictly for laboratory research use only and are not for human or veterinary use.
