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Compounds / SS-31

SS-31

Full name
Elamipretide (SS-31 / MTP-131)
Mechanism
Mitochondria-targeted tetrapeptide that binds cardiolipin on the inner mitochondrial membrane, stabilising cristae and improving electron-transport efficiency and reducing ROS.
Half-life
~few hours
Administration
subcutaneous, intravenous (trials)
Typical dosage*
low: trial-defined · typical: investigational (e.g. 40mg/day SC in some trials) · high: trial-defined
Researched for
mitochondrial myopathy / cardiomyopathy research, age-related mitochondrial dysfunction research
Reported side effects
injection-site reactions (trials), long-term safety under study
Interactions
not characterised — investigational
Commonly combined
investigational monotherapy
Scheduling
🇦🇺 AUInvestigational — not approved
🇺🇸 USInvestigational — not FDA-approved (multiple trials)
🇬🇧 UKInvestigational — not licensed
Regulatory status
Investigational drug (elamipretide). Not approved. Grey-market 'SS-31' is unverified material.

*Doses are commonly-reported figures from public sources, not a recommendation. Educational only.

18studies
9faqs
mitochondriallongevityinvestigational

Studies (18)

YearTitle / venueSource
2026Elamipretide: First Approval
Drugs · preclinical
PMID 41335372
2025Elamipretide: A Review of Its Structure, Mechanism of Action, and Therapeutic Potential
International journal of molecular sciences · preclinical
PMID 39940712
2025SS-31@Fer-1 Alleviates ferroptosis in hypoxia/reoxygenation cardiomyocytes via mitochondrial targeting
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · preclinical
PMID 39848110
2025Mitochondrial Dysfunction: The Silent Catalyst of Kidney Disease Progression
Cells · preclinical
PMID 40497970
2025Beyond the injection: delivery systems reshaping retinal disease management
Expert opinion on pharmacotherapy · preclinical
PMID 40319468
2025Innovative technologies for the treatment of dry age-related macular degeneration (AMD) - modern therapeutic perspectives and their future
Romanian journal of ophthalmology · preclinical
PMID 40330967
2025Telomere length in offspring is determined by mitochondrial-nuclear communication at fertilization
Nature communications · preclinical
PMID 40087268
2024ALCAT1-mediated abnormal cardiolipin remodelling promotes mitochondrial injury in podocytes in diabetic kidney disease
Cell communication and signaling : CCS · preclinical
PMID 38200543
2024Comprehensive dry eye therapy: overcoming ocular surface barrier and combating inflammation, oxidation, and mitochondrial damage
Journal of nanobiotechnology · preclinical
PMID 38725011
2024Genotype-specific effects of elamipretide in patients with primary mitochondrial myopathy: a post hoc analysis of the MMPOWER-3 trial
Orphanet journal of rare diseases · human
PMID 39574155
2023Efficacy and Safety of Elamipretide in Individuals With Primary Mitochondrial Myopathy: The MMPOWER-3 Randomized Clinical Trial
Neurology · human
PMID 37268435
2023Elamipretide(SS-31) Attenuates Idiopathic Pulmonary Fibrosis by Inhibiting the Nrf2-Dependent NLRP3 Inflammasome in Macrophages
Antioxidants (Basel, Switzerland) · preclinical
PMID 38136142
2022A ROS-Responsive Liposomal Composite Hydrogel Integrating Improved Mitochondrial Function and Pro-Angiogenesis for Efficient Treatment of Myocardial Infarction
Advanced healthcare materials · preclinical
PMID 35848825
2022Targeting mitochondrial dysfunction with elamipretide
Heart failure reviews · preclinical
PMID 35037146
2021Potential Therapeutic Candidates for Age-Related Macular Degeneration (AMD)
Cells · preclinical
PMID 34572131
2021Elamipretide (SS-31) treatment attenuates age-associated post-translational modifications of heart proteins
GeroScience · preclinical
PMID 34480713
2020Mitochondrial targeted therapy with elamipretide (MTP-131) as an adjunct to tumor necrosis factor inhibition for traumatic optic neuropathy in the acute setting
Experimental eye research · preclinical
PMID 32758490
2019Elamipretide (SS-31) improves mitochondrial dysfunction, synaptic and memory impairment induced by lipopolysaccharide in mice
Journal of neuroinflammation · preclinical
PMID 31747905

Questions (9)

What is SS-31?

SS-31 (Elamipretide (SS-31 / MTP-131)). Mitochondria-targeted tetrapeptide that binds cardiolipin on the inner mitochondrial membrane, stabilising cristae and improving electron-transport efficiency and reducing ROS.

What is SS-31 used for?

Commonly discussed uses: mitochondrial myopathy / cardiomyopathy research, age-related mitochondrial dysfunction research. There is both human and animal/preclinical research, though the depth and quality vary by indication. Note: most uses are not approved indications.

How does SS-31 work?

Mechanism: Mitochondria-targeted tetrapeptide that binds cardiolipin on the inner mitochondrial membrane, stabilising cristae and improving electron-transport efficiency and reducing ROS.

Is SS-31 safe?

Reported considerations: injection-site reactions (trials), long-term safety under study. There is both human and animal/preclinical research, though the depth and quality vary by indication. Investigational drug (elamipretide). Not approved. Grey-market 'SS-31' is unverified material. This is not a safety endorsement; safety data for unapproved compounds is incomplete.

What is the typical dose of SS-31?

Commonly cited ranges (educational reference, not a recommendation): low trial-defined, typical investigational (e.g. 40mg/day SC in some trials), high trial-defined. Administration: subcutaneous, intravenous (trials). Half-life: ~few hours.

Is SS-31 legal in Australia?

Australian status: Investigational — not approved. Investigational drug (elamipretide). Not approved. Grey-market 'SS-31' is unverified material. General regulatory context: most active peptides are Schedule 4 and require a prescription; import via the Personal Importation Scheme requires a valid Australian prescription for prescription-only goods.

How do you store SS-31?

Reconstitution/storage reference: research vials vary; storage: refrigerated.

What is SS-31 commonly stacked with?

Commonly discussed combinations (anecdotal for unapproved compounds): investigational monotherapy. Stacking increases interaction/safety uncertainty.