How much caffeine is in Prime Energy?
A 12 oz can of Prime Energy has about 200 mg of caffeine. See US vs UK cans and the difference between Prime Energy and Prime Hydration.

A 12 oz can of Prime Energy has about 200 mg of caffeine, while Prime Hydration (the bottle) has none. UK and EU cans are lower.
| Prime | Size | Caffeine |
|---|---|---|
| Prime Energy (US) | 12 oz | 200 mg |
| Prime Energy (UK/EU) | 330 ml | ~140 mg |
| Prime Hydration | 16.9 oz | 0 mg |
The bottle and the can look alike, but only the can is an energy drink. At 200 mg, it's about two coffees. Add it to your daily total in the Caffeine Calculator.
Compare other energy drinks
See the caffeine in Red Bull, Monster, 5-Hour Energy, Celsius, Bang, Alani Nu, C4 Energy.
Written by Mike Zagare · Published
Mike Zagare is the founder of Knuckle. He tapered off a 500 to 600mg-a-day habit and built Knuckle from that protocol.
Common questions
Does Prime Hydration have caffeine?
No. Prime Hydration is caffeine-free; only Prime Energy cans contain caffeine.
Is Prime Energy safe for kids?
No. The can is labelled not for children under 18 because of its 200 mg caffeine.
Is Prime Energy stronger than Monster?
Per can, slightly more: about 200 mg in 12 oz versus about 160 mg in a 16 oz Monster.
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