How SS-31 Works

SS-31 is a synthetic antioxidant peptide that belongs to the Szeto-Schiller (SS) family. It stands out in cellular biology because it ignores standard cell surface receptors and goes straight to the heart of cellular power generation: the mitochondria. It crosses cell membranes effortlessly due to its alternating structural design:

• Binds Selectively to Cardiolipin: Once inside the cell, SS-31 targets and binds specifically to cardiolipin, a unique fat molecule found strictly within the inner mitochondrial membrane. Cardiolipin is essential for holding the electron transport chain (the cellular power generator) together.

• Restores ATP (Cellular Energy) Production: When tissues suffer from aging, injury, or low oxygen, cardiolipin breaks down, causing the power generator to fall apart. By stabilizing cardiolipin, SS-31 patches the structural leaks, rapidly restoring normal adenosine triphosphate (ATP) energy production.

• Inhibits Toxic Free Radical Production: Standard antioxidants try to clean up free radicals (reactive oxygen species, or ROS) after they have already leaked into the cell. SS-31 stops them at the source by optimizing electron flow, preventing toxic ROS from forming in the first place.

• Prevents Programmed Cell Death: By protecting the inner membrane structure, it prevents the leakage of cytochrome c into the wider cell body. This prevents the cell from triggering premature apoptosis (programmed cell death) during metabolic stress.

Chemical Properties