Optifree Express NoRub is a so called ”rub free” lens solution that keeps the contacts fresh and moist all day. The solution is effective on disinfection, cleansing, rinsing, moisturizing and storing of all soft contact lenses. Optifree Express NoRub also kills off unhealthy bacteria and fungus. The contacts should be placed in the solution in a closed lens case over night or for at least 6 hours.