Caffeine helps to improve concentration and increase alertness. One 250-ml can of Red Bull Energy Drink contains 80 mg of caffeine. The 80 mg of caffeine contained in one 250-ml can of Red Bull ...

With colorful cans and fun flavors like Strawberry Watermelon and Ice Pop, Prime Energy seems harmless enough. In fact, the caffeinated energy drink ... on the list of Prime Energy ingredients.