Preferred Nutrition s Super STRESS B Complex is a formulation designed to combat stress levels and mild nervousness. Super Stress B Complex supplies eight B vitamins in vitamin B complex as well as several related nutrients. These include thiamine (B1), riboflavin (B2), niacin (B3), pyridoxine (B6), cobalamin (B12), folic acid, pantothenic acid, and biotin. The other related nutrients are choline and inositol. B Vitamins are essential to your body s energy production, fat metabolism, stress management and other vital processes.