Contains All B Vitamins: B1, B2, B3, B6, Folic Acid, B12, Biotin, Pantothenic Acid, Niacin, Thiamin, Riboflavin, Folate, Choline & Inositol. Sustained Release + Energy: Slowly releases over 6-8 hours to provide a steady balanced stream of B vitamins (Vitamin B2, B3, B6, B9, ...