Source comparison
SS-31 vs MOTS-C: How SS-31 Works
In the SS-31 vs MOTS-C comparison, SS-31’s mechanism is structural: the peptide (sequence: D-Arg-Dmt-Lys-Phe-NH2) selectively concentrates 1,000–5,000× within the inner mitochondrial membrane due to its alternating cationic and aromatic residues. Once localize
This comparison does not assign a generated winner or score.
- In the SS-31 vs MOTS-C comparison, SS-31’s mechanism is structural: the peptide (sequence: D-Arg-Dmt-Lys-Phe-NH2) selectively concentrates 1,000–5,000× within the inner mitochondrial membrane due to its alternating cationic and aromatic residues. Once localized, SS-31 binds cardiolipin — the signature phospholipid of the mitochondrial inner membrane — and prevents its peroxidation under oxidative stress conditions. Cardiolipin is essential for electron transport chain complex assembly (particularly complexes I and III), and its peroxidation by reactive oxygen species (ROS) destabilizes the entire ETC, reducing ATP production and accelerating mitochondrial dysfunction in aging and disease.
- Research published in the Journal of the American College of Cardiology demonstrated that SS-31 preserved mitochondrial morphology and reduced ROS production by approximately 40% in cardiac ischemia-reperfusion models. A separate 2020 study in aged rodents found that SS-31 administration over 8 weeks restored mitochondrial cristae structure and improved maximum oxygen consumption (VO2max) by roughly 15%. These structural protection effects make SS-31 particularly relevant for research into cardiac insufficiency, neurodegenerative disease, and age-related mitochondrial dysfunction.