SS-31
Elamipretide
mitochondrial function
oxidative stress
fatigue
energy crashes
cellular maintenance
metabolic health
endurance
healthspan
Binds cardiolipin in the inner mitochondrial membrane; in late-stage trials for primary mitochondrial myopathy.
Goal profile
ENERGY
4/5 axes
LONGEVITY
4/7 axes
PERFORMANCE
1/4 axes
Evidence
2004
first described
527
indexed studies
How strong the evidence is
Early human data
Ran the full course through Phase 3 in mitochondrial myopathy, so more than a thousand people have been dosed under observation. It missed its primary endpoint.
Highest study design
randomised human trials
Human studies
16
Replication
several groups, one country
Regulatory status
not approved anywhere
Last reviewed
2026-08-14
The bar is derived from these five facts, not set by hand. Human study counts follow the weekly PubMed refresh; the rest change only when a trial is published or a regulator acts.
How strong the effect is
strength 2 of 5 · weight 0.43
Noticeable but modest
Missed its primary endpoint in Phase 3.
What's unique
It targets a specific lipid in the mitochondrial membrane, which is unusually precise for anything here.
Unexpected positive evidence
Kidney-function markers improved in trials designed around muscle endpoints.
Benefits
targets cardiolipin on the inner mitochondrial membrane and restores cristae structure
Mitochondrial function · from week 8
reduced mitochondrial ROS production at the source rather than downstream
Metabolic health · from week 12
higher ATP output in tissues with the greatest energy demand
Mitochondrial function · from week 4
cardio- and nephroprotection in ischaemia-reperfusion models
Mitochondrial function · from week 4
support in mitochondrial myopathy and age-related eye disease
Mitochondrial function · from week 4
relief from deep fatigue that sleep alone does not fix
Mitochondrial function · from week 4
Timeline
Days 1–14
Fatigue often lifts first, particularly in people with genuine mitochondrial dysfunction. Healthy users frequently notice nothing at all.
Weeks 2–6
Exercise tolerance and muscle endurance improve. Trials in mitochondrial myopathy measured this stage with walking distance rather than sensation.
Weeks 6–12
The full window. Recovery capacity and endurance improve together; the effect depends heavily on how impaired the starting point was.
Post-cycle
Benefits fade over weeks. It supports mitochondrial function rather than permanently repairing it.
Risks
Short-term
Injection-site reactions, reported in trials at meaningful rates.
Long-term
Late-stage trials have missed primary endpoints. Efficacy itself is unresolved.
Tolerance & withdrawal
Daily dosing in trial protocols; no cycling described.
Dosing
Dose
1–10 mg per injection at home; trials of elamipretide run at 40 mg
5–10 mg is the home range; the 40 mg trial dose is intravenous clinical use, not this.
Route
Subcutaneous — abdomen
A belly fold. At home doses the volume is small enough to be painless.
Timing
Morning, on an empty stomach
Fasted, before anything else — it is the closest thing here to a stimulant.
Frequency
Daily, or 5 on / 2 off
Daily through a short course; the pause matters only once the run gets long.
Cycle
4–8 weeks
Short courses with long breaks — nobody runs this continuously.
Duration
Short courses
A few weeks at a time with long gaps — nobody has run it continuously with data behind them.
Forms
injectable
~100%
+ Full dose delivered; nothing lost to first-pass
− Daily needles, sites, sharps disposal
Refrigerate 2–8 °C after reconstitution
topical
Local only
+ Acts where you put it
− No systemic effect worth counting on
Room temperature, away from light
Sources
527 indexed papers in the source catalog snapshot; not a live PubMed count
Catalog evidence category: preclinical. This is an editorial classification, not a clinical review.
Community anecdotes do not establish safety or efficacy.
Primary regulatory sources are linked below; clinical literature has not been independently reviewed for this FAQ.
FAQ
SS-31 (Elamipretide) is a mitochondria-targeted tetrapeptide. The HEIVE catalog describes it as: Binds cardiolipin in the inner mitochondrial membrane; in late-stage trials for primary mitochondrial myopathy. It is also known as Elamipretide, Bendavia and MTP-131.
Regulatory sources checked: . Source verification only; no clinician review is claimed.