Ninja Swole Stim Free Pre-Workout
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
Transparent Labs Stim-Free Pre-Workout delivers more performance per dollar than Ninja Swole Stim Free Pre-Workout — based on how both products compare to the broader pre-workout market.
Ingredient Comparison
Ninja Swole Stim Free vs Transparent Labs Stim-Free — dosing per serving
| Ingredient | Objective | Ninja Swole Stim Free | Transparent Labs Stim-Free |
|---|---|---|---|
| L-Citrulline Malate | Pump | 7g | 8g |
| Betaine Anhydrous | Pump | 2.5g | 2.5g |
| Arginine Silicate | Pump | 1.5g | — |
| Taurine | Pump | — | 1.3g |
| Sodium | Pump | 200mg | — |
| AstraGin | Pump | 50mg | — |
| L-Tyrosine | Focus | — | 1g |
| Alpha-GPC | Focus | 600mg | — |
| Lion's Mane Extract | Focus | 600mg | — |
| Huperzine | Focus | 100mcg | 100mcg |
| Beta-Alanine | - | 3.2g | 4g |
| Camellia Sinensis Extract | - | 300mg | — |
| VasoDrive-AP | - | 254mg | — |
| ElevATP | - | — | 150mg |
| Senactiv | - | — | 50mg |
| Black Pepper Extract | - | — | 5mg |
Who Should Buy Each
Matching products to training goals and stim tolerance
Choose Ninja Swole Stim Free If…
- ✓Mind-muscle connection is as important to you as raw energy
Choose Transparent Labs Stim-Free If…
- No strong differentiators for this product in this comparison.
Frequently Asked Questions
Common questions about these two pre-workouts
Both are low-stim or stimulant-free (0mcg or less per serving).
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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.