Xyience Xenergy has more caffeine than Monster: 176mg vs 160mg in the same 16 oz can. That is a 16mg gap, and since the cans match, the per-serving number is the whole story.
Xyience Xenergy vs Monster: the numbers
| Xyience Xenergy | Monster | |
|---|---|---|
| Caffeine per serving | 176mg per 16 oz can | 160mg per 16 oz can |
| Caffeine per fl oz | 11.0mg | 10.0mg |
| Servings to reach 400mg (FDA context) | 2.3 | 2.5 |
Sources: Xyience Xenergy's figure is verified in our Xyience Xenergy caffeine guide against Caffeine Informer (source); Monster's figure is verified in our Monster guide against Caffeine Informer (source).
Which one should you pick?
Pick Monster when you want the lighter dose or a slower ramp, and Xyience Xenergy 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
- Xyience Xenergy: the full caffeine guide
- Monster: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does Xyience Xenergy or Monster have more caffeine? Xyience Xenergy: 176mg per 16 oz can versus 160mg per 16 oz can for Monster.
Which is stronger per ounce? Xyience Xenergy, at about 11.0mg per fluid ounce versus 10.0mg for Monster.
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