Inspired by the biology of your eyes. Works like your eyes ph balanced to match healthy tears cleans and fights germs conditions, cleans, removes protein, disinfects, rinses, stores, for soft contact lens including silicone hydrogel lenses. Free lense case included. Wearing contact lenses, especially in a world of less sleep and more computer use, makes it more challenging for eyes to stay comfortable and healthy. To care for your lenses and your eyes, a lens care solution that works like your eyes was created. Biotrue multi-purpose solution moistens in a way your eyes do as it uses a lubricant also found in your eyes, and it is ph balanced to match healthy tears. Biotrue multi-purpose solution helps prevent certain tear proteins from denaturing for clean lenses and fights germs for healthy lens wear.