The delicious sugar-free energy drink, C4® Smart Energy, is powered by InnovaTea® Naturally Derived Caffeine (from Green Tea) and brain-boosting Cognizin® Citicoline to deliver energy, focus, and mental performance to help you conquer any task—from work to play, gaming to studying, partying to planning.
Backed by 20 years of sports nutrition expertise, we’ve raised the bar with an innovative selection of supplements. Since every fitness journey is unique, we continue to develop and deliver products that support our customers at every experience level.
Elevate your energy and focus with C4 Smart Energy so you can crush any task. Smartly flavored with natural flavors, zero sugar, and zero calories.
Ignite your limitless potential with Smart Energy. Powered by plant-based energy and nutrients that support mental focus, attention, and recall, Smart Energy unlocks Superbrain Performance.
Ignite your Superbrain Performance with mental focus, attention, and recall from patented nutrient, Cognizin.
Proudly naturally flavored and free of artificial colors and artificial flavors.
Refreshing and mouthwatering flavors and made without artificial colors or dyes.
Elevate your energy with 200 mg of InnovaTea caffeine naturally derived from green tea leaves.
From $30
Online 24 hours
365 a day
Secure payment