Natures Aid® Energy Effervescent tablets combines B vitamins and Vitamin C with Guarana, Ginseng & Caffeine. To take simply disolve the effervescent tablet in a glass of water. The tablets are sugar free and use a natural citrus flavour. There are no artificial flavours or colours. Each Energy Effervescent contains; Vitamins B1, B2, Niacin and B5 all contribute to normal energy production. Niacin, Folate, B5, B6 & B12 all help to reduce tiredness and fatigue. Vitamin B5 also contributes to normal mental performance. Vitamin C contributes to the normal function of the immune system during and after intense physical exercise and also contributes to the reduction of tiredness and fatigue. These Energy Effervescents therefore provide a great tasting, easy to use comprehensive support for people on the go.