EZO® holds upper and lower dentures tight with VACUUM GRIP™. When dentures are new, they grip with a natural vacuum. Over time, gums can recede and dentures can slip. EZO® denture cushions help recreate the natural vacuum that keeps dentures in place. Made of pure cotton flannel, paraffin wax and corn oil, EZO® denture cushions add extra cushioning with no bad taste or odor and last up to 24 hours.