Vitamin C is most commonly taken to during periods of colds and flus. Studies have shown that large quantities of vitamin C while suffering from a cold or flu can half the duration of the illness and alleviate flu-like symptoms. It can also reduce the severity of symptoms such as sneezing and coughing- particularly if it is taken immediately when the symptoms start. Sona Vitamin C1000 complex is a superior formulation combining the goodness of naturally derived vitamin C with cofactor bioflavonoid complexes. A Time Release formulation ensures sustained release throughout the day of this essential nutrient.