A preservative free multi dose dry eye drop that can be used for 6 months from the time of opening. The bottle is unique, most eye drop bottles have to be thrown away after 28 days whereas this bottle lasts for 6 months and thanks to the Comod (Continuous Monodose feature) a measured amount is dispensed each time. Instant relief from symptoms. Hyaluronic Acid 0.1%. Use 3 times daily.