Natures Aid Energy Effervescent tablets contain B Vitamins, Vitamin C, Guarana, Ginseng and Caffeine. Pleasing natural citrus flavour. Sugar Free, vegan with no artificial colours or flavours. Natures Aid Energy Effervescent Tablets give a boost of energy with a pleasing natural citrus flavour. With Vitamins B1, B2, Niacin, and B5 to contribute to normal energy production; Vitamins Niacin, B5, B6 and B12 help to reduce tiredness; Vitamin B5 contributes to normal mental function; and Vitamin C to contribute to the normal function of the immune system, and reduce tiredness and fatigue. Key Features of Natures Aid Energy Effervescents Made with Vitamin C, Vitamins B1, B2 B3, B5, B6, AND B12, Folic Acid, Guarana, Ginseng Extract and Caffeine Great tasting citrus flavour Easy to use effervescent tablets Sugar free Vegetarian and Vegan No artificial colours or flavours.