HycoSan Extra: Hycosan Extra is a dry eye drop which contains Sodium Hyaluronate, a natural ingredient that is used to replenish the tear film With a concentration of 0.2% Sodium Hyaluronate it offers effective relief and managing of symptoms for those suffering from more severe and persistant dry eyes Do you wear contact lenses? Not a problem as Hycosan Extra dry eye drops can be used by contact lens wearers Hycosan Extra Eye drops for dry eyes are contained within a unique bottle design. 1 pump of the bottle gives 1 drop A long-lasting and robust formula. Can be used for 6 months after first opening and can be stored at room temperature