Provita Artemisinin Pro - Artemisia annua, is known in western herbal medicine as sweet wormwood or Qing Hao. It is used to control fever and to boost the immune system. It draws its anti-viral and anti-fungal properties from Artemisinin, its major therapeutic compound, found in concentrations of 1.5-2%. Provita Artemisia annua extract may be helpful with bacterial and viral infections such as the common cold and influenza.