NRG tablets contain caffeine from guarana that maintains alertness and reduces the feeling of mental fatigue. 

Guarana, a shrub originating in South America, have for centuries been used by the Indians of the Amazon, because it contains caffeine that keeps you awake and reduces mental fatigue 

Guarana helps the body to strengthen and maintain a normal level of concentration 

During the day, it can sometimes happen that you feel you simply no longer able to concentrate. When you are overcome by des- mental fatigue, try to stay awake and focused can you imagine the effort. Taking a dietary supplement with Guarana can be a good option that will help maintain focus and energy. 

Take two to four tablets each day.