Reign Total Body Fuel contains 300 mg of caffeine per 16 oz can (473 ml / 16 oz). That is about 3 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg). Concentration: 63.4 mg per 100 ml.
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Reign Total Body Fuel Caffeine Content by Serving
| Serving | Volume | Caffeine | Per 100 ml | Level |
|---|---|---|---|---|
| 16 oz can | 473 ml / 16 oz | 300 mg | 63.4 mg | Very High |
Source: caffeine figures from Caffeine Informer, accessed 2026-06-11. Values can vary by batch, location, and preparation; check the label or the source for the latest figures.
How Reign Total Body Fuel Compares to Coffee
At 300 mg per 16 oz can, Reign Total Body Fuel delivers about 3 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg). For a wider comparison across drinks, try the caffeine comparison tool or browse the full caffeine database.
When to Stop Drinking Reign Total Body Fuel Before Bed
With caffeine's median 5-hour half-life, a 16 oz can of Reign Total Body Fuel (300 mg) needs about 12 h 56 min to fall under 50 mg, the level where most people can fall asleep normally. That puts the last call at 9:00 AM (09:00) for a 10 PM bedtime and 10:00 AM (10:00) for an 11 PM bedtime. Individual half-lives range from roughly 2 to 12 hours, so treat these as a starting point.
The Reign Total Body Fuel sleep cutoff page has last-call times for four bedtimes, and the caffeine half-life calculator personalizes the curve to your metabolism.
