Celsius Essentials has more caffeine than Reign Storm on both counts: 270mg per 16 oz can against 200mg per 12 oz can, and about 17mg per fluid ounce against 17. The serving sizes differ, so the table below shows both ways of counting.
Celsius Essentials vs Reign Storm: the numbers
| Celsius Essentials | Reign Storm | |
|---|---|---|
| Caffeine per serving | 270mg per 16 oz can | 200mg per 12 oz can |
| Caffeine per fl oz | 16.9mg | 16.7mg |
| Servings to reach 400mg (FDA context) | 1.5 | 2.0 |
Sources: Celsius Essentials's figure is verified in our Celsius Essentials caffeine guide against Celsius essential facts (source); Reign Storm's figure is verified in our Reign Storm guide against Caffeine Informer (source).
Which one should you pick?
Pick Reign Storm when you want the lighter dose or a slower ramp, and Celsius Essentials when you actually need the bigger hit and know your tolerance. If you are stacking either with other caffeinated drinks through the day, run the math against the 400mg reference rather than guessing.
For context, the FDA cites 400mg of caffeine a day as an amount generally not associated with negative effects in healthy adults. Tolerance and health vary, so treat these numbers as information, not advice.
Related reading
- Celsius Essentials: the full caffeine guide
- Reign Storm: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
FAQ
Does Celsius Essentials or Reign Storm have more caffeine? Celsius Essentials: 270mg per 16 oz can versus 200mg per 12 oz can for Reign Storm.
Which is stronger per ounce? Celsius Essentials, at about 16.9mg per fluid ounce versus 16.7mg for Reign Storm.
Comparing caffeine? The caffeine comparison tool puts hundreds of drinks side by side, and the caffeine curfew calculator can check your cutoff time for tonight.