Compact and portable whitening pen makes it effortless to whiten your teeth at home or on the move.Perfect for removing years of stains or maintaining your already bright and beautiful smile! Remove cap and twist bottom of pen until gel appears on brush tip. You may have to twist more than a few times to get the device primed for multiple uses. Smile wide and brush a small amount of gel onto each tooth and inside crevices. After 60 seconds, relax your smile. The gel will dissolve on its own. Avoid eating or drinking for 1 hour. Repeat use 1 to 2 times per day for 7-10 days or until desired results are achieved. Store pen in a cool, dry place.