Bion Tears Lubricant Eye Drops are for anyone suffering from severe dry eye who doesn’t know where to turn for relief. These eye drops are specifically formulated to be as close to human tears as possible. They even contain zinc and bicarbonate, which are two naturally occurring elements in human tears. Because these tears are so similar to naturally occurring tears, Bion Tears Lubricant Eye Drops help restore the eye’s natural environment and help relieve the burning and irritation associated with severe dry eye. Plus, Bion Tears Lubricant Eye Drops have no preservatives, so there are no harmful ingredients to worry about and you can use them as frequently as you like each and every day. Each package of Bion Tears Lubricant Eye Drops contains 28 single-use vials.