THE BEST OF BOTH WORLDS – C4 PERFORMANCE ENERGY® MEETS SWEET, CANDY-INSPIRED FLAVORS.Unlock your best performance, power, and speed with C4 Performance Energy® in the Strawberry Blast flavor. Every can is packed with 200 mg of caffeine and CarnoSyn® Beta-Alanine for explosive energy you can feel. Made with clinically studied ingredients, zero grams of sugar or artificial colors, and carrying the NSF Certified for Sport® label, C4 Performance Energy® is the athlete’s choice for elevating performance.