Muscletech - eff'n energy. Bioactive effervescent bead technology - blue razz fizz - 20 sachets welcome to the eff'n future quick-dissolve fzzr technology delivers fast results, whether you're mixing it in water or pouring it straight into your mouth. For ultimate versatility with unique effervescent flavors, eff'n fuels your drive to do more, be more, and crush every goal. One-of-a-kind energy & sensory experience ▲ 1 enhances focus & cognition▲ 1 ¹ eff'n energy. Contains caffeine anhydrous to deliver energy and focus in minutes, and enhance cognition, as measured in multiple studies via increased alertness, improved vigilance and faster reaction time. ▲. Muscletech eff'n energy. - blue razz fizz 20 sachets (20 servings)