Prolific Review
- Solid mental focus
- Improves a lot at 2 scoops
- Performance is a clear weak point
- Energy and pumps both modest
- Needs 2 scoops for full effect
Effects Timeline
AI-estimated changes in effects over the first 3 hours after taking the recommended serving.
Prolific offers decent focus at the standard dose, with performance the clear weak spot.
Stepping up to the larger dose lifts every category meaningfully, closing much of that gap.
Honest take: Underwhelming at the standard dose — you really need the full serving to get your money's worth.
Ingredient breakdown
Every dose · every gap| Ingredient | Clinically effective dose | Dose in Prolific | Status |
|---|---|---|---|
| Citrulline | 4 g | 3 g | 75%Moderate dose |
| Betaine | 2.5 g | 1.25 g | 50%Under-dosed |
| Taurine | 2–3 g | 0.75 g | 38%Under-dosed |
| Caffeine (actual caffeine) | 200–400 mg | 160 mg | 80%Moderate dose |
| CDP-Choline | 250 mg | 125 mg | 50%Under-dosed |
| Theanine | 200–400 mg | 100 mg | 50%Under-dosed |
| Rhodiola Rosea | 200 mg | 50 mg | 25%Under-dosed |
- Citrulline3 g75%Moderate dose
- Betaine1.25 g50%Under-dosed
- Taurine0.75 g38%Under-dosed
- Caffeine (actual caffeine)160 mg80%Moderate dose
- CDP-Choline125 mg50%Under-dosed
- Theanine100 mg50%Under-dosed
- Rhodiola Rosea50 mg25%Under-dosed
Evidence references
Effects of Caffeine Intake on Endurance Running Performance and Time to Exhaustion: A Systematic Review and Meta-Analysis
Promising, but Not Completely Conclusive-The Effect of l-Theanine on Cognitive Performance Based on the Systematic Review and Meta-Analysis of Randomized Placebo-Controlled Clinical Trials
Does One Shot Work? The Acute Impact of a Single Taurine Dose on Exercise Performance: A Meta-Analytic Review
Effects of chronic betaine supplementation on exercise performance: Systematic review and meta-analysis
