Intelligent energy. Energy to accomplish the physical goals you set your mind to. Vuka Workout is a lightly carbonated berry lemonade made with rooibos (African Redbush) tea to keep you performing at peak levels. Restore what's been lost and prepare for what's ahead in your workout with: l-carnitine; potassium; sodium; natural caffeine; magnesium; calcium. Other vitamins and natural energizers that will help you reach your potential include: vitamins B3, B5, B6, B12 and grape seed extract. Vuka energy drinks are specifically formulated to give you the right kind of energy for the activities that fill your life. No preservatives. All natural ingredients. No high fructose corn syrup.