FOXO4-DRI vs SS-31 (Elamipretide)
Side-by-side comparison of key properties, dosing, and research.
Anti-Aging & Longevity
FOXO4-DRIAnti-Aging & Longevity
SS-31 (Elamipretide)- Summary
- FOXO4-DRI is a D-retro-inverso peptide derived from the FOXO4 protein that selectively induces apoptosis in senescent cells. By disrupting the FOXO4-p53 interaction that keeps senescent cells alive, it triggers programmed cell death specifically in these aging, pro-inflammatory cells while sparing healthy tissue.
- SS-31 (Elamipretide) is a synthetic mitochondria-targeting tetrapeptide that concentrates in the inner mitochondrial membrane and protects cardiolipin from oxidative damage. It is one of the most promising mitochondrial longevity compounds, studied in clinical trials for heart failure, renal disease, and age-associated mitochondrial dysfunction.
- Half-Life
- Estimated 2-4 hours (D-amino acid confers resistance to proteolysis)
- ~2–5 hours
- Admin Route
- Subcutaneous, Intraperitoneal (research)
- SubQ
- Research
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- Typical Dose
- 5 mg/kg in rodent studies; human equivalent approximately 0.5-1 mg/kg
- 5–10 mg
- Frequency
- 3 consecutive days per cycle
- Daily to several times per week
- Key Benefits
- Selectively clears senescent cells (senolytics)
- Reduces senescence-associated secretory phenotype (SASP) and chronic inflammation
- Demonstrated restoration of physical fitness in aged mice
- May improve healthspan and reduce age-related tissue dysfunction
- Potential for treatment of age-related pathologies driven by cellular senescence
- Does not affect healthy non-senescent cells at therapeutic doses
- Restores mitochondrial function and ATP production
- Protects inner mitochondrial membrane cardiolipin
- Reduces mitochondrial reactive oxygen species (ROS)
- Improves exercise capacity and reduces fatigue
- Cardioprotective — studied in heart failure trials
- Renoprotective — reduces ischemic kidney injury
- Anti-aging via mitochondrial preservation
- Potential in neurodegenerative disease prevention
- Side Effects
- Limited human data; largely preclinical evidence
- Possible temporary inflammatory response as senescent cells are cleared (senolytic effect)
- Weight loss observed at high doses in rodent studies
- Unknown long-term safety profile in humans
- Injection site irritation
- Nausea (rare)
- Generally well-tolerated in clinical trials
- Stacks With
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