Extreme H2o WeeklyExtreme H2O Weekly contact lenses are a new solution for lens wearers who experience dryness and discomfort. For about the same price as two-week lenses, these lenses can be replaced weekly. It's easier for the wearer; starting a new week means using a new lens. Frequent replacement also means fewer deposits and higher moisture content, and that translates to more comfort for you.Extreme H2O Weekly contact lenses are made from moisture-retaining hioxifilcon A. Their contoured lens edge and durability make them a solid choice for weekly lenses.