SS-31 is studied in mitochondrial research for a distinctive reason: rather than acting as a general antioxidant, it is examined for a targeted action at the inner mitochondrial membrane, the site where cellular energy is produced. This overview explains what SS-31 is, how researchers describe its mechanism, and what it is studied for, all within a strictly research-focused frame.
SS-31 is also known as elamipretide (and by the earlier research code MTP-131). All three names refer to the same molecule, so you will see them used interchangeably in the literature.
What It Is
SS-31 is a small, cell-permeable peptide that selectively targets the inner mitochondrial membrane. It binds to cardiolipin, a lipid molecule critical for maintaining the structure and function of the electron transport chain where ATP is produced. Source
This targeted mechanism is what sets SS-31 apart in mitochondrial research: it concentrates at the exact location where energy production takes place, rather than acting broadly across the cell.
How It Works
This mechanism is described as it appears in laboratory and preclinical studies. It reflects what is measured in cell and animal models, not an established outcome in humans.
What Researchers Study It For
These are the areas that appear most often in the SS-31 literature. Each is an investigational research direction, a question being studied, not a demonstrated benefit or an approved use.
Common Research Protocols
SS-31 is typically reconstituted from lyophilized powder and administered via subcutaneous injection. Its small size and positive charge allow it to concentrate selectively in mitochondria, which is central to how researchers study its targeted mechanism.
Community Interest Areas
SS-31 has drawn research interest for its highly targeted mechanism, acting directly at the site where mitochondrial energy production occurs. Investigators are particularly interested in its examined ability to restore function in aged mitochondria rather than simply providing antioxidant support.
SS-31 vs. MOTS-c
SS-31 and MOTS-c are both studied within mitochondrial research, and they are often compared. They act, however, on very different targets, one at the membrane and one through signaling.
Frequently Asked Questions
What is SS-31?
SS-31 is a small, cell-permeable peptide that selectively targets the inner mitochondrial membrane. It binds to cardiolipin, a lipid essential to the electron transport chain where ATP is produced. In research it is studied for mitochondrial membrane integrity and cellular energy output.
Is SS-31 the same as elamipretide?
Yes. SS-31 is the research code for the peptide also known as elamipretide (and by the earlier code MTP-131). The names refer to the same molecule and are used interchangeably in the literature.
What do researchers study SS-31 for?
Reported research areas include mitochondrial membrane integrity, reactive oxygen species reduction, age-related cardiac and renal function, and electron transport chain efficiency. These are investigational areas studied in laboratory and preclinical settings, not approved uses.
How does SS-31 work?
In research models, SS-31 crosses cell membranes and concentrates in mitochondria, binds to cardiolipin on the inner membrane, is studied for stabilizing the electron transport chain, and is examined for reduced oxidative stress and improved ATP output. This describes preclinical findings, not an established outcome in humans.
How is SS-31 used in research protocols?
SS-31 is typically reconstituted from lyophilized powder and administered via subcutaneous injection in preclinical models. Its small size and positive charge allow it to concentrate selectively in mitochondria. It is intended for research use only and is not for human consumption.
How much does SS-31 cost?
Research-grade SS-31 is available from 33 Degrees of Healing at 99% purity with a third-party certificate of analysis. See the SS-31 product page for current pricing and availability. All products are sold for research, laboratory, and investigational purposes only.
Key Takeaways
- SS-31 (elamipretide, MTP-131) is a small, cell-permeable peptide that concentrates in mitochondria
- It is studied for binding cardiolipin on the inner mitochondrial membrane, where it is examined for stabilizing the electron transport chain and supporting ATP output
- Reported research areas include membrane integrity, reactive oxygen species, age-related cardiac and renal function, and electron transport efficiency — all investigational, none approved uses
- Unlike a general antioxidant, SS-31 is studied for a targeted action at the site of energy production
- The statements made on this website have not been evaluated by the U.S. Food and Drug Administration (FDA). All products sold by 33 Degrees of Healing are provided strictly for research, laboratory, and investigational purposes only.
Related Research Compounds
Read the Full Mitochondrial Cofactor Review →
Sources
- Szeto HH. First-in-class cardiolipin-protective compound as a therapeutic agent to restore mitochondrial bioenergetics. Br J Pharmacol. 2014. PubMed
This article is for educational and research purposes only. It is not intended as medical advice. The compounds discussed are research chemicals not approved by the FDA for human use. Always consult qualified professionals and review current regulations before conducting any research.