Prime Energy vs Starbucks bottled Frappuccino (Mocha): which has more caffeine?

Prime Energy has more caffeine than Starbucks bottled Frappuccino (Mocha) on both counts: 200mg per 12 oz can against 105mg per 13.7 oz bottle, and about 17mg per fluid ounce against 8. The serving sizes differ, so the table below shows both ways of counting.

These are different categories of drink, which changes how the caffeine arrives. Energy drinks and sodas list an exact number because caffeine is a measured additive; brewed drinks vary with the beans and the brew, so their figures are compiled averages. The numbers here are the standard published values for each.

Prime Energy vs Starbucks bottled Frappuccino (Mocha): the numbers

Sources: Prime Energy's figure is verified in our Prime Energy caffeine guide against Caffeine Informer (source); Starbucks bottled Frappuccino (Mocha)'s figure is verified in our Starbucks bottled Frappuccino (Mocha) guide against PepsiCo product facts (source).

Which one should you pick?

Pick Starbucks bottled Frappuccino (Mocha) when you want the lighter dose or a slower ramp, and Prime Energy 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

• Prime Energy: the full caffeine guide
• Starbucks bottled Frappuccino (Mocha): the full caffeine guide
• The verified caffeine database

FAQ

Does Prime Energy or Starbucks bottled Frappuccino (Mocha) have more caffeine? Prime Energy: 200mg per 12 oz can versus 105mg per 13.7 oz bottle for Starbucks bottled Frappuccino (Mocha).

Which is stronger per ounce? Prime Energy, at about 16.7mg per fluid ounce versus 7.7mg for Starbucks bottled Frappuccino (Mocha).