BIOTRUE Multi-Purpose Solution is inspired by the biology of eyes to make wearing contact lenses easier on eyes. It works in harmony with eyes to help lenses stay clean and moist, so your eyes stay comfortable all day. CLEANS & DISINFECTS: BIOTRUE contact lens solution provides excellent cleaning and disinfection. It removes debris and protein buildup for clean, clear lenses. BIO-INSPIRED FEATURES: Inspired by the eye itself, BIOTRUE contact lens solution contains hyaluronan (HA), a moisturiser found naturally in tears. It also matches the pH of healthy tears to help make contact lenses comfortable when you put them in. LONG-LASTING MOISTURE: BIOTRUE solution provides up to 20 hours of moisture. HA in BIOTRUE solution attracts water to the lens surface to envelop the lens in a moisture-rich cushion for moist, comfortable lenses all day. MULTI-PURPOSE SOLUTION: BIOTRUE contact lens solution can be used to clean, disinfect and store contact lenses in a lens case when not being worn, or to rinse contact lenses before wear. For soft contact lenses including silicone hydrogel lenses.