From the Manufacturer:
Alpha lipoic acid (ALA) is a vitamin-like antioxidant used in Europe to promote liver and nerve health. It also provides protective benefits against oxidative processes involved in degenerative diseases and premature aging.
Alpha lipoic acid has been called the "universal" antioxidant. It boosts glutathione (one of the body's most powerful antioxidants) levels in cells, has potent antioxidant action in almost all the tissues of the body, and is a co-factor for some of the key enzymes involved in generating energy from food and oxygen in mitochondria. One of the most beneficial effects of alpha lipoic acid is the ability to regenerate other essential antioxidants, such as vitamins C and E, coenzyme Q10, and glutathione. Several studies have proven benefits for promoting healthy nerve function in diabetic patients who have used 600 mg - 1,200 mg per day.