The BIEST BOOSTER increases alertness, bridges periods of fatigue and supports your well-being in a healthy lifestyle. Biestmilch promotes the immune response. Guarana floods more slowly than coffee, so the waking effects last longer. Contents: 9 chewable tablets of 7.8 g Ingredients: Colostral milk powder 55%, Emdex® dextrate (non- GMO) 30%, guarana extract 5%, microcrystalline cellulose, gum arabic, citric acid, magnesium stearate, orange flavor bitter, steviol glycosides 10% Recommended use: one chewable tablet if needed. If you want to sleep, you should stop taking BIEST BOOSTER 4 to 6 hours before. Shelf life: BIEST BOOSTER lasts 3 years without losing activity.