Source Naturals Alpha Lipoic Acid Timed Release boosts energy metabolism while helping to maintain healthy blood sugar levels already within the normal range. A powerful antioxidant, it directly recycles vitamin C, indirectly recycles vitamin E, and acts on both water- and fat-soluble free radicals to protect cellular health. Alpha-lipoic acid is a vitamin-like compound that plays a role in liver and metal detoxification as well as maintaining vision and nerve function. Source Naturals Alpha Lipoic Acid Timed Release is designed to be released gradually throughout the day.