Product details of Opti Free Express Multi Purpose Contact Lens Solution 3 x 355ml (Exp: Jul 2024) OPTI FREE Multi Purpose Disfecting Solution OPTI-FREE® Express® Multi-Purpose Disfecting Solution can be used to clean, rinse, disinfect and store soft contact lenses. 3 x 355ml OPTI-FREE® Express® Multi-Purpose Disfecting Solution can be used to clean, rinse, disinfect and store soft contact lenses. It contains TETRONIC®1304 for a proven & effective cleaning. Looking for clean, comfortable contact lenses? OPTI-FREE® Express® is the solution for you. How to use OPTI-FREE Express 1. Thoroughly wet each side of the lens with solution. 2. Rub the lens for 20 seconds. 3. Rinse each side of the lens for 10 seconds with a steady stream of solution. 4. Fill lens case with solution and place lenses in case. 5. Tighten the case and wait overnight or at least 6 hours.