Bausch & Lomb developed Biotrue Multi-Purpose Solution by studying how the eye naturally works to clean, hydrate, and keep itself healthy. This unique product provides outstanding lens care by preventing the formation of irritating deposits on the lens surface and killing harmful microorganisms. It also ensures optimal eye health by providing protein management, sustaining beneficial proteins, and removing denatured proteins. Biotrue Multi-Purpose Solution is pH balanced to match healthy tears, making it easier to wear lenses. It kills 99.9% of germs, cleans, rinses, removes protein, conditions, and stores lenses. Always read and follow the directions for use. For external use only. Discard solution from lens case after each use, keep the bottle tightly closed when not in use, store solution at room temperature, and use before the expiration date.