BEAR FOOT NUTRITION Extraround with synephrine pre-workout mixture 500 gPre workout mix with synephrine and tropical fruit flavor. It contains maltodextrin for energy supply and essential amino acids EAA and 1000 mg of vitamin C in one dose. Bear Foot Nutrition Extraround with synephrine is not primarily designed as a strong stimulant, but as a complex mixture ensuring the optimal functioning of the body during training activity . Synephrine, when used regularly, helps to increase the body's thermogenesis before exercise.