Stay sharp, alert, focused, and energized with Vivarin Smooth Energy Extended Release Caffeine Tablets. Each small, portable tablet delivers 200mg of extended-release caffeine for steady mental clarity, focus, and alertness that lasts for hours—without the crash or jitters you get from coffee or energy drinks. Vivarin is sugar-free, calorie-free, and non-habit forming, making it a smarter choice than sodas or sugary energy shots. With unique extended-release technology, 50% of the caffeine is released in the first hour and 50% over the next 3+ hours—providing smooth, sustained energy when you need it most. Whether you're studying for exams, powering through work shifts, driving, gaming late into the night, or managing a busy lifestyle, Vivarin Smooth Energy helps you stay awake, alert, and in control—anytime, anywhere. Trusted for decades, Vivarin is the safe, effective caffeine supplement designed for students, professionals, travelers, and anyone who needs reliable focus support.