A crisp, great-tasting lift that feels intentional. Built for the moments you want energy, not jitters.
Reviews
3.1
28 ratings
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1
One of the main reasons I love O2 is the non-carbonated, clean caffeine, and great taste. The new version is ok, but I'm not a fan of the carbonation. I like the caffeinated boost before a workout from the previous version. Having bubbles in my belly during my workouts from the new carbonated version isn't great.
C
Cat · August 13, 2026
I swapped to this flavor because they stopped making the Orange Mango flavor without caffeine. This energy version tastes fine, but I prefer the discontinued drink for both flavor and lack of carbonation.
C
Clayton · August 26, 2026
I loved the original O2 orange mango so I was hoping this would be similar. Unfortunately it’s sweetened with monk fruit and that upsets my stomach. I find this has an aftertaste. I would love to have the original again