Bubbl'r antioxidant sparkling water vs Red Bull: which has more caffeine?

Red Bull has more caffeine than Bubbl'r antioxidant sparkling water on both counts: 80mg per 8.4 oz can against 69mg per 12 oz can, and about 10mg per fluid ounce against 6. The serving sizes differ, so the table below shows both ways of counting.

Bubbl'r antioxidant sparkling water vs Red Bull: the numbers

Sources: Bubbl'r antioxidant sparkling water's figure is verified in our Bubbl'r antioxidant sparkling water caffeine guide against Caffeine Informer (source); Red Bull's figure is verified in our Red Bull guide against Red Bull label / Caffeine Informer (source).

Which one should you pick?

Pick Bubbl'r antioxidant sparkling water when you want the lighter dose or a slower ramp, and Red Bull 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

• Bubbl'r antioxidant sparkling water: the full caffeine guide
• Red Bull: the full caffeine guide
• The verified caffeine database
• Every drink compared: the comparisons index
• Compare any two of 120+ drinks

FAQ

Does Bubbl'r antioxidant sparkling water or Red Bull have more caffeine? Red Bull: 80mg per 8.4 oz can versus 69mg per 12 oz can for Bubbl'r antioxidant sparkling water.

Which is stronger per ounce? Red Bull, at about 9.5mg per fluid ounce versus 5.8mg for Bubbl'r antioxidant sparkling water.