Bloodsport
vs Transparent Labs Stim-Free Pre-Workout
Ingredient & Score Comparison
Last updated: Feb 2026
PwrRanks Verdict
Score Comparison
Objective scores based on ingredient dosing — 0 to 1 scale
Bloodsport's formula has 10g L-Citrulline and 4.2g Arginine Nitrate, which contribute to a higher pump score.
Transparent Labs Stim-Free Pre-Workout's formula has 1g L-Tyrosine and 100mcg Huperzine, which contribute to a higher focus score.
Transparent Labs Stim-Free Pre-Workout delivers more performance per dollar than Bloodsport — based on how both products compare to the broader pre-workout market.
Ingredient Comparison
Bloodsport vs Transparent Labs Stim-Free — dosing per serving
| Ingredient | Objective | Bloodsport | Transparent Labs Stim-Free |
|---|---|---|---|
| L-Citrulline | Pump | 10g | — |
| L-Citrulline Malate | Pump | — | 8g |
| Arginine Nitrate | Pump | 4.2g | — |
| Betaine Anhydrous | Pump | — | 2.5g |
| Taurine | Pump | 2g | 1.3g |
| Casein Hydrolysate | Pump | 1.0g | — |
| Sodium | Pump | 500mg | — |
| AstraGin | Pump | 50mg | — |
| L-Tyrosine | Focus | — | 1g |
| Huperzine | Focus | — | 100mcg |
| Beta-Alanine | - | — | 4g |
| Grape Seed Extract | - | 400mg | — |
| ElevATP | - | — | 150mg |
| Senactiv | - | — | 50mg |
| Black Pepper Extract | - | — | 5mg |
Who Should Buy Each
Matching products to training goals and stim tolerance
Choose Bloodsport If…
- ✓You do not like the Beta-Alanine tingles
Choose Transparent Labs Stim-Free If…
- ✓You want sharp mental focus that lasts through the full session
Frequently Asked Questions
Common questions about these two pre-workouts
Both are low-stim or stimulant-free (0mcg or less per serving).
More Comparisons
How PwrRanks Scores Pre-Workouts
Our methodology
PwrRanks scores every pre-workout by analyzing its ingredient label algorithmically. We generate four objective scores — Energy, Pump, Focus, and Value — that reflect what's in the tub, not how the product is marketed. Value scores are calculated using live pricing data to reflect real cost-per-serving at time of comparison.