Speed ​​Booster Plus 2 For intense workouts Provides immediate and long-lasting energy Low in sugars Guarana contains natural caffeine, which is released slowly, providing a continuous source of energy. The guarana in Speed ​​Booster Plus 2 provides 150 mg of caffeine per serving, equivalent to three cups of coffee. Caffeine can stimulate the breakdown of fat and provide more energy for training. Arginine and ornithine improve blood circulation in muscle tissue, helping your muscles. Taurine opens up cells for faster action. Methionine prepares the body for protein synthesis after training. Only 5 g of carbohydrates per serving!