Many athletes, like IRONMAN Sebastian Kienle, trust in the benefits of caffeine. Small doses can provide a mental boost, while higher doses of 3-4 mg per kilogram of body weight can increase performance and endurance. POWERBAR CAFFEINE BOOST delivers the right dose of 200mg of caffeine (for a body weight of 70kg) in an easy-to-use vial. With only 0.6g of sugars, it is ideal for workouts that do not require carbohydrate consumption. 200mg of caffeine per 25ml vial, derived from multiple sources such as tea and guarana extracts. Increased endurance and performance thanks to caffeine. Low sugar levels, 0.6g per vial. Natural flavors.