SS-31

SS-31 (elamipretide) is presented as a mitochondria-targeted tetrapeptide that works by localizing to the inner mitochondrial membrane and binding cardiolipin. Cardiolipin is described as critical for organizing electron-transport-chain supercomplexes and preserving the folded cristae architecture needed for efficient energy production. In the protocol’s explanation, SS-31 stabilizes cardiolipin–protein interactions, which can improve electron flow through the ETC, reduce excess reactive oxygen species generation, and support higher ATP synthesis—especially in metabolically active tissues. The page summarizes that these mitochondrial effects have been linked in preclinical research to protection in varied models (cardiac injury, neurodegeneration, chronic kidney disease, and age-related muscle loss). In human studies described, tolerability is characterized as favorable with no dose-limiting toxicity signals; the most frequent observation is mild-to-moderate injection-site irritation, and extended-duration safety evidence remains more limited.