Reign Total Body Fuel Peach Fizz (16oz) — caffeine content and your daily math
The chemical receipt for Reign Total Body Fuel Peach Fizz: label caffeine, coffee equivalence, and what's still in you at bedtime.
| Fact | Value |
|---|---|
| Caffeine per can (label) | 300 mg |
| Can size | 16 fl oz |
| Caffeine per fl oz | 18.8 mg |
| ≈ cups of coffee (8oz drip) | 3.2 |
| Share of FDA 400mg/day guidance | 75% |
| Maker | Monster Beverage |
What's still in you, hour by hour
| Time after drinking | Caffeine remaining (≈5h half-life) | |
|---|---|---|
| +2h | 227mg | |
| +4h | 172mg | |
| +6h | 131mg | late afternoon if consumed at lunch |
| +8h | 99mg | bedtime territory for most schedules |
| +10h | 75mg | bedtime territory for most schedules |
Run your own numbers with the caffeine half-life calculator.
Stacking: caffeine + nicotine
If you also use nicotine pouches, the two stimulants stack — both raise heart rate and both suppress appetite, and the combination on an empty stomach is the single most common "wired but fried" pattern SteadyBeast users log. A 300mg can plus a few 6mg pouches before lunch is a bigger nervous-system event than either alone. See the nicotine pouch database for the other half of your math.
Good to know: Reign matches Bang at 300mg per can — the practical ceiling of mainstream US energy drinks.
FAQ
How much caffeine is in Reign Total Body Fuel Peach Fizz?
Reign Total Body Fuel Peach Fizz (16oz) contains 300mg of caffeine per the label — about 3.2 cups of 8oz drip coffee (~95mg each). Always confirm on your can; formulations change.
How long does the caffeine in Reign Total Body Fuel Peach Fizz stay in your system?
Caffeine's average half-life is ~5 hours. From a 300mg can, roughly 150mg is still active 5 hours later and ~75mg after 10 hours — which is why an afternoon can shows up at bedtime.
Is 300mg of caffeine a lot?
The FDA cites 400mg/day as a level not generally associated with negative effects for healthy adults. One Reign Total Body Fuel Peach Fizz is 75% of that — before any coffee, tea, soda, or pre-workout you also had.