Improve focus and increase energy without the crash or jitters taking the BPN Bare Performance Nutrition Flight Pre-Workout Supplement. The Infinergy ingredient buffers the salts in caffeine while also replenishing the energy produced by caffeine to help push you through your activities, and the CarnoSyn beta-alanine supports endurance and power output. The blue raspberry flavoring offers a mouthwatering taste, and the betaine increases levels of SAM-e that can improve your mental focus and alertness.