Built for the innovators, the disruptors, the hustlers and go-getters. Unleash your inner Einstein and tap into the limitless power of your mind. C4 Smart Energy delivers energy, focus, and mental performance to help you conquer any taskfrom work to play, gaming to studying, partying to planning. Fight back morning grogginess and midday slumps with C4 Smart Energy stick packs. Made with natural energy and ingredients to sharpen mental focus, C4 Smart Energy stick packs are the perfect boost to your day, wherever your day takes you.