NutraBio
PRE Workout
Servings / tub
20
Price per serving
$2.25
Cost per point
$0.27
per formula score point
Caffeine
250 mg
≈ 2.6 cups of coffee
Strengths
- A powerful, long-lasting pump
- Strong, sustained energy from two caffeine sources
- Genuine mental focus support
- A serious, long-lasting pump
- Strong, steady energy without an early crash
Watch-outs
- Large serving size
- A few supporting ingredients are lighter than the rest
- You don't want a big single scoop
Effects Timeline
AI-estimated changes in effects over the first 3 hours after taking the recommended serving.
AI analysis
A serious pump, strong sustained energy, and real mental focus -- built for people who want it all in one scoop. Just know it's a big serving.
Ingredient breakdown
Every dose · every gap| Ingredient | Clinically effective dose | Dose in PRE Workout | Status |
|---|---|---|---|
| Citrulline | 4 g | 10 g | 100%Clinically effective |
| Arginine | 4 g | 3.52 g | 88%Almost clinically effective |
| Nitrates | 500 mg | 987 mg | 100%Clinically effective |
- Citrulline10 g100%Clinically effective
- Arginine3.52 g88%Almost clinically effective
- Nitrates987 mg100%Clinically effective
Evidence references
Int J Sport Nutr Exerc Metab · 2024 · n=331
Effect of Beta-Alanine Supplementation on Maximal Intensity Exercise in Trained Young Male Individuals: A Systematic Review and Meta-Analysis
Nutrients · 2026 · n=644
Effects of Citrulline Malate Supplementation on Exercise Performance: A Systematic Review and Three-Level Meta-Analysis
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