X2 ENDURANCE Clean Energy Drink, Raspberry, 12 oz | CVS X2 ENDURANCE provides the same kick as other energy drinks but has no artificial ingredients. X2 ENDURANCE clean energy drinks give you the stamina to perform at your best while maintaining a healthy lifestyle every day. X2 energy drinks use caffeine from green tea as well as fast and slow-burning sugars to deliver sustained energy with no crash or jitters. And with significantly less sugar than other leading healthy energy drinks, X2 delivers a smooth and refreshing taste that’s not too sweet.