Berocca Boost 30 Effervescent Tablets is a dietary supplement containing essential vitamins and minerals (magnesium and zinc), as well as caffeine, to give you the boost you need, both intellectually and physically. It supports physical fitness and mental activity, thanks to vitamin C, which helps reduce fatigue, and zinc, which contributes to normal cognitive functioning. It helps to increase alertness and improve concentration thanks to the presence of caffeine.