Jarrow Formulas Alpha Lipoic Sustain With Biotin provides support for daily cellular energy production and normal glucose metabolism. Made with high-quality, non-GMO ingredients, this vegan and gluten free dietary supplement contains no wheat, soybeans, dairy, egg, fish, shellfish, peanuts, tree nuts or sesame. Each serving of these supplement tablets delivers 300 mg of Alpha Lipoic Acid, an antioxidant involved in normal glucose metabolism and cellular energy production. Jarrow Formulas Alpha Lipoic Sustain also provides 330 mcg of Biotin, a cofactor necessary for lipid metabolism and cellular energy production. Biotin has been added to prevent biotin deficiency that may accompany long term alpha lipoic acid use. Jarrow Formulas Alpha Lipoic Sustain tablets feature Bilayer Release Technology combining 1/3 quick release and 2/3 sustained release formats to raise and maintain Alpha Lipoic Acid blood levels over a longer period. Suggested Use: Adults, take one tablet one or two times a day with meals or as directed by your qualified healthcare professional. Informed by strong scientific research, Jarrow Formulas products are carefully crafted to ensure you get the benefit of each and every vitamin, mineral and supplement.