Dry Eyes Eye Mist contains proven ingredients to relieve the symptoms of dry eyes & has a triple action:• Replenishes the water layer of your tear film• Stabilises the lipid layer• Natural plant extract chamomile provides soothing relief The modern formulation of all Vizulize products means they don't use harsh preservatives & chemicals, such as Benzalkonium Chloride, used in some other branded products on the market today. The Vizulize eyecare range is a comprehensive range of contact lens friendly products suitable for use by vegetarians & vegans. None of the products are tested on animals & the sodium hyaluronate is a biotech developed molecule & NOT derived from animal products.