Intense exercise can deplete energy quickly, leading athletes to turn to pre-workouts for supplementation. Klean Pre-Workout contains 300mg of standardized nitrates from beet root extract, vitamin C and 75mg of organic caffeine, known to maximize athletic performance and protect against oxidative stress. Caffeine can additionally boost cognitive focus and alertness, enabling athletes to avoid the drowsy feeling during workouts while still enjoying a natural lemon tea flavor.* NSF Certified For Sport®, Klean Pre-Workout is an ideal source of fuel for any training regimen.*