Opti free puremoist multi purpose solution combines the comfort of long lasting moisture and the healthiness of clean contact lenses the hydraglyde moisture matrix keeps your contact lenses hydrated from insertion to removal surrounding them in a cushion of moisture that will keep your lenses moist and feeling great for up to 16 hours its proven disinfecting system based on the unique ingredients protect your eyes from irritations due to harmful microorganisms or protein deposits opti free