SS-31 (Elamipretide) is a small synthetic peptide designed to protect and improve the function of mitochondria—the “power plants” inside your cells that produce energy. It works by binding to a specific lipid in the mitochondrial membrane (cardiolipin), helping stabilize and repair it. This improves energy production, reduces oxidative stress, and supports healthier cell function, which can have wide-ranging benefits for organs and tissues.