Soothes and refreshes red, tired eyes with a formulation containing hypromellose 0.30% and herbal extracts. The modern formulation of all Vizulize products means they don\'t use harsh preservatives and 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 and vegans. None of the products are tested on animals and the sodium hyaluronate is a biotech developed molecule and NOT derived from animal products.