Caffeine in Cellucor C4 Original Pre-Workout
150 mg
per 1 scoop / 8 oz water High
Halfway to the ceiling in one go. Respect.
Every serving size
| Serving | Caffeine | % of 400 mg day | Finish by (10:30 PM bed) |
|---|---|---|---|
| 1 scoop / 8 oz water | 150 mg | 38% | 2:34 PM |
Cutoff column: average metabolism (5 h half-life), ~50 mg bedtime threshold — run it with your bedtime →
How it compares
Cellucor C4 Original Pre-Workout 150 mg
Green tea (8 oz) 28 mg
Black tea (8 oz) 47 mg
Brewed coffee (8 oz) 96 mg
Monster (16 oz) 160 mg
Bang (16 oz) 300 mg
Spends a serious share of the 400 mg daily ceiling. Treat it as a morning-to-early-afternoon drink unless the calculator says otherwise. At 150 mg per 1 scoop / 8 oz water, this drink is 38% of the FDA's 400 mg daily ceiling for healthy adults.
Source: Manufacturer label · confidence: high
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