Alpha Lipoic Acid (ALA) serves a variety of important functions in the body, one of which is the ability to help metabolize sugar, especially in muscles, where it promotes energy. ALA is also beneficial for liver health and helps to revitalize the underlying structure of the skin so it can look healthier and more radiant. ALA is often called the "universal antioxidant" for its ability to help neutralize cell-damaging free radicals in both the water-soluble and fat-soluble compartments in the cell.