NO-FOG Gel 10ml for up to 120 applications. Maximum protection against fogging for all types of lenses. Thanks to the high concentration of the substance NoFog, the gel provides prolonged protection against fogging of glasses. Instructions for use: Clean and dry glasses thoroughly before applying the anti-fog treatment. Apply a small amount to each side of the lens and spread well with the applicator. Leave to dry for a few seconds and then wipe with a clean, dry microfibre. Do not use paper to avoid scratching the lenses.