SS-31

SS-31 (Elamipretide / MTP-131) is a mitochondria-targeted tetrapeptide that selectively concentrates in the inner mitochondrial membrane. Specifically, it binds directly to cardiolipin—a unique phospholipid critical for maintaining the structural integrity of the mitochondrial electron transport chain and ATP synthase function. ss-31 peptide

Mechanistically, research suggests that by stabilizing cardiolipin, SS-31 improves electron transport chain efficiency, reduces electron leakage, decreases reactive oxygen species (ROS) production, and enhances cellular ATP synthesis. Consequently, these properties have positioned SS-31 as a premier investigational compound in mitochondrial medicine for restoring organelle structure and function in states of bioenergetic failure.

In addition, studies have highlighted its potential cardioprotective effects, particularly in models of ischemia-reperfusion injury, heart failure, and cardiac aging. Furthermore, researchers have explored its applications in skeletal muscle physiology, renal protection, and neurodegenerative conditions where mitochondrial dysfunction plays a primary driver role. Overall, as a precisely targeted mitochondrial pharmacological tool, SS-31 occupies a unique and vital position in cellular energy and longevity research.