Home - Caffeine - Energy Drinks Rockstar Sugar Free Rockstar Sugar Free Caffeine 160 mg per 473.176 ml Switch to fl oz Calories: 25 kcal You Might Also Like:Phoenix Energy ShotNutramint Smart SerumReed’s Ginger Energize ShotForto Organic Coffee ShotNeu Nootropic ShotX-Mode Energy ShotPerformance CaffeineKirkland Energy ShotBalance Energy ShotRed Thunder Energy Shot