Key Points Transparent Labs Stim-Free Pre-Workout offers caffeine-free energy with performance-focused ingredients. Contains no artificial colors, sweeteners, or flavors; uses natural flavoring and stevia for taste. Awarded best stim-free pre-workout in 2026 Fitness Awards after thorough expert hands-on testing. Beer and peanuts, peanut butter and jelly, and a pre-workout drink with a solid lift. Don’t mind me, just naming some of the most iconic pairings known to mankind.