The Biotrue Multi-Purpose Solution For Soft Contact Lenses gives you maximum lens-wearing comfort. Made with a duo-action cleaning formula, this lens solution disinfects and matches the natural ph of your natural tears. When your eyes maintain its natural moisture and Ph balance, your eyes stay healthy. Plus, the Biotrue Multi-Purpose Solution For Soft Contact Lenses removes "bad protein," so that the good protein is left to fight off germs. As the Biotrue disinfects and removes protein build-up, it also keeps your lenses moisturized. When your contacts are free of build-up, you reduce the risk of eye infections and irritating discomfort. The Biotrue Lens Solution, 10 oz is made for soft contact lenses, the contact solution moisturizes and cleans your lenses, so you get all-day eye comfort.