C4 Smart Energy® Tropical Oasis Variety Pack flag-new-product Add the clinically studied CarnoSyn®

Add the clinically studied CarnoSyn® Beta-Alanine and superfood extract

and individuality collide

Made with 200mg of natural caffeine‡

and Dynamine™ — with performance-driven ingredients that support focus

C4 Smart Energy® Tropical Oasis Variety Pack flag-new-product Add the clinically studied CarnoSyn®NATURAL ENERGY Fight back morning grogginess and midday slumps with C4 Smart Energy. Made with 200mg of natural caffeine, C4 Smart Energy keeps you energized when you need it most. SHARPENS MENTAL FOCUS Get ready to boost your mental game! C4 Smart Energy is clinically studied to elevate focus, concentration, recall, mental multi tasking, and gaming performance. BOOST METABOLISM & SUPPORT FAT LOSS Designed to fuel your goals, mentally and physically,