Everyday can be hard on your eyes when wearing contact lenses. In a world where you sleep very little and use your computer a lot, it can be difficult to keep your eyes comfortable and hydrated, especially when wearing contact lenses. Biotrue makes wearing contact lenses easier for your eyes because it works just like your eyes. Biotrue has the same pH as healthy tears and a lubricant in your eyes. Laboratory research shows that Biotrue helps keep lenses moist for up to 20 hours. Biotrue conditions, cleans, eliminates proteins, disinfects, rinses and preserves. Suitable for hydrophilic contact lenses, including Silicone-Hydrogel lenses. Lens case included.