- Excellent energy and strong pumps
- Outstanding performance support
- Every ingredient clearly disclosed
- Focus is the weakest effect
- High stimulant content overall
- Only 20 servings per tub
- One large scoop, not split
Effects Timeline (1 serving)
AI-estimated changes in effects over the first 3 hours after taking 1 serving.
PRE Ingredient breakdown
| Ingredient | Clinically effective dose | Dose in PRE | 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 |
| Betaine | 2.5 g | 2.5 g | 100%Clinically effective |
| Beta Alanine | 4.5 g | 3.2 g | 71%Moderate dose |
| Taurine | 3 g | 2 g | 67%Moderate dose |
| Tyrosine | 2–8 g | 1.5 g | 75%Moderate dose |
| Alpha-GPC Choline | 600 mg | 300 mg | 50%Under-dosed |
| Caffeine (actual caffeine) | 200–400 mg | 250 mg | 100%Clinically effective |
| Dicaffeine Malate / Infinergy (75% caffeine) | Raw compound weight; scored as 75% caffeine yield | 133 mg | Caffeine source |
| Velvet Bean | 5 g | 0.25 g | 5%Under-dosed |
| Sodium (elemental, hydration) | 0.3–1 g | 0.06 g | Hydration support |
| Potassium (elemental) | 100–400 mg | 80 mg | Hydration support |
| Vincamine | 20 mg | 20 mg | 100%Clinically effective |
- Citrulline10 g100%Clinically effective
- Arginine3.52 g88%Almost clinically effective
- Nitrates987 mg100%Clinically effective
- Betaine2.5 g100%Clinically effective
- Beta Alanine3.2 g71%Moderate dose
- Taurine2 g67%Moderate dose
- Tyrosine1.5 g75%Moderate dose
- Alpha-GPC Choline300 mg50%Under-dosed
- Caffeine (actual caffeine)250 mg100%Clinically effective
- Dicaffeine Malate / Infinergy (75% caffeine)133 mgCaffeine source
- Velvet Bean0.25 g5%Under-dosed
- Sodium (elemental, hydration)0.06 gHydration support
- Potassium (elemental)80 mgHydration support
- Vincamine20 mg100%Clinically effective
AI analysis
NutraBio PRE delivers excellent energy alongside strong pumps and outstanding performance, in a fully transparent formula with no proprietary blends.
Mental focus is the one area that lags behind the rest, so it's not the pick if sharp concentration is the main goal.
Honest take: A genuinely excellent, fairly priced pre-workout with almost nothing to complain about.
Evidence references
Effect of Beta-Alanine Supplementation on Maximal Intensity Exercise in Trained Young Male Individuals: A Systematic Review and Meta-Analysis
Alpha-GPC and power output
Effects of Caffeine Intake on Endurance Running Performance and Time to Exhaustion: A Systematic Review and Meta-Analysis
Tyrosine for Mitigating Stress and Enhancing Performance in Healthy Adult Humans, a Rapid Evidence Assessment of the Literature
