US · Energy drinks
How much caffeine is in PRIME Energy?
The current 16 fl oz PRIME Energy can lists 200 mg. This is not the caffeine-free PRIME Hydration drink.
Interactive serving
Adjust this serving
Choose a documented size, then change the quantity. The caffeine total and timeline update together.
Source and provenance
- Source type
- Manufacturer
- Market
- US
- Value basis
- Manufacturer listed
- Source reviewed
- 21 August 2026
US 16 fl oz Energy product, not PRIME Hydration.
Estimated caffeine remaining over time
These figures apply CaffCalc’s exponential model to the adjusted 200 mg starting value. They are calculations, not measurements of caffeine in a particular person.
| Hours elapsed | 3-hour half-life | 5-hour half-life | 7-hour half-life |
|---|---|---|---|
| 0 | 200 mg | 200 mg | 200 mg |
| 3 | 100 mg | 132.0 mg | 148.6 mg |
| 5 | 63.0 mg | 100 mg | 121.9 mg |
| 8 | 31.5 mg | 66.0 mg | 90.6 mg |
| 10 | 19.8 mg | 50 mg | 74.3 mg |
| 12 | 12.5 mg | 37.9 mg | 61.0 mg |
With the central five-hour model, the estimate falls below 25 mg after approximately 15.0 hours. The faster and slower columns show why one fixed clearance time should not be treated as a personal fact.
Use this caffeine value
Carry the selected serving into a calculation or save it for quicker private tracking on this device.
Same category, lower documented dose
Looking for less caffeine?
These suggestions use documented servings in the same category and compare caffeine quantity only. Check the evidence badge before relying on a reported figure.