Combine that with fully transparent labeling, great flavor, and absolutely no artificial color/food dyes, artificial sweeteners, or artificial flavoring, and it's no wonder Stim-Free Pre-Workout has become a fan favorite. strong Stimulant-Free Pre-Workout Formula Backed by Science. sstrong Ideal for those sensitive to caffeine and nighttime gym-goers, Transparent Labs Stim-Free Pre-Workout is formulated with clinically effective dosages of ergogenic ingredients to enhance your athletic performance without stimulants. strong Enhances Strength, Stamina, and Muscle Pumps: strong>With an unmatched blend of clinically dosed nitric oxide boosters, Stim-Free Pre-Workout bolsters muscle strength, endurance, and blood flow starting from the very first scoop. strong Promotes Clean, Lasting Focus, Drive, and Energy: strong Get dialed in for every workout with evidence-based nootropics like taurine, L-tyrosine, and huperzine-A. Since this is a stimulant-free formula, it won't give you jitters or cause a post-workout crash. strong>Naturally Flavored and Sweetened with Stevia:strong>Most non-stim pre-workouts are loaded with artificial colors, sweeteners, and flavors. We know you care about what you put in your body, so Stim-Free Pre-Workout contains only natural flavoring and stevia instead of the hidden junk you find in other pre-workout supplements. strong Third-Party Tested for Purity and Potency: strong Like all Transparent Labs products, every batch of Stim-Free Pre-Workout is third-party tested to ensure you're getting everything on the label and nothing that doesn't belong in the product.