The brain-boosting beverage comes in four varieties. C4 Smart Energy is a new line of better-for-you mental performance energy drinks designed to support cognitive function, awaken "SuperBrain ...

It’s a smart drink called Qualia Nootropic Energy. And it is going to change the way you think about energy drinks. (Futurism Readers: Use coupon code "PROD15" for 15% off your purchase.) ...

A 12-ounce can of Red Bull contains about 114 milligrams of caffeine — more than three times the amount in a 12-ounce can of Coca-Cola. Prime Energy has more: 200 milligrams in each 12-ounce can.