RSP's Fast Fuel Blue Razz is a protein-category combination product designed for pre- or intra-workout support, containing 7 ingredients. It achieves an N+ Score of 83, receiving a 'B+' grade, signifying a good quality formulation. The product includes Vitamin B6 (10mg) and Vitamin B12 (80mcg) at clinically studied doses. Its core components are proprietary blends: Fast Fuel(R) BCAA Matrix (5000mg), Fast Fuel(R) Max Contract Matrix (3500mg), and Fast Fuel(R) Energy Matrix (1000mg). While the overall ingredient count is modest, the use of proprietary blends limits full transparency regarding individual ingredient dosages within those matrices. This supplement may benefit athletes seeking energy and muscle support during exercise.
About This Product
Fast Fuel Blue Razz by RSP is a protein supplement containing 7 active ingredients. It has earned an N+ Score of 83/100 (Grade B+).
This product features a fully transparent label with individual ingredient amounts disclosed, and key ingredients are present at clinically effective doses based on peer-reviewed research.
Notable clinical-dose ingredients include Vitamin B6, Vitamin B12.
N+ Score Breakdown
Are key ingredients present at clinically effective doses based on research?
Does the product include all expected ingredients for its supplement category?
Are individual ingredient amounts clearly disclosed without proprietary blends?
Does the formula include a breadth of beneficial compounds from multiple pathways?
Strengths
- +Key ingredients at clinically effective doses
- +Fully transparent label with individual ingredient amounts disclosed
- +Broad ingredient diversity exceeding category norms
- +2 ingredient(s) at clinical dose levels
Weaknesses
- −Missing several expected ingredients for its category
Ingredient Analysis (7 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| Vitamin B6 | 10.000 mg | Optimal |
| Vitamin B12 | 80.000 mcg | Optimal |
| Sodium | 52.000 mg | N/A |
| Fast Fuel(R) BCAA Matrix | 5000.000 mg | N/A |
| Fast Fuel(R) Max Contract Matrix | 3500.000 mg | N/A |
| Fast Fuel(R) Energy Matrix | 1000.000 mg | N/A |
| Fast Fuel(R) No Matrix | 500.000 mg | N/A |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.





