Super R-Lipoic Acid is a cellular energy health support supplement. In the body, lipoic acid is a powerful antioxidant. But not all lipoic acid supplements are the same. That’s because there are two forms of lipoic acid. For simplicity’s sake, we’ll call the forms “R” and “S.” The “R” form is biologically active in your body. The “S” form, not so much. Our R-Lipoic Acid formula delivers 240 mg of the “R” form of lipoic acid for powerful oxidative stress protection and cell energy support.