Pepsi has more caffeine than Faygo Moon Mist: 38mg vs 19.7mg in the same 12 oz can. That is a 18.3mg gap, and since the cans match, the per-serving number is the whole story.
Faygo Moon Mist vs Pepsi: the numbers
| Faygo Moon Mist | Pepsi | |
|---|---|---|
| Caffeine per serving | 19.7mg per 12 oz can | 38mg per 12 oz can |
| Caffeine per fl oz | 1.6mg | 3.2mg |
| Servings to reach 400mg (FDA context) | 20.3 | 10.5 |
Sources: Faygo Moon Mist's figure is verified in our Faygo Moon Mist caffeine guide against Caffeine Informer (source); Pepsi's figure is verified in our Pepsi guide against Caffeine Informer (source).
Which one should you pick?
Pick Faygo Moon Mist when you want the lighter dose or a slower ramp, and Pepsi 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
- Faygo Moon Mist: the full caffeine guide
- Pepsi: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
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Gear from this guide
FAQ
Does Faygo Moon Mist or Pepsi have more caffeine? Pepsi: 38mg per 12 oz can versus 19.7mg per 12 oz can for Faygo Moon Mist.
Which is stronger per ounce? Pepsi, at about 3.2mg per fluid ounce versus 1.6mg for Faygo Moon Mist.
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