Guaranteed to provide relief. Tears Naturale Free Lubricant Eye Drops is guaranteed to provide temporary relief of dry eye symptoms. Prove it to yourself at no risk. * Preservative-free artificial tears * Lubricant eyedrops with the Duasorb System (dextran & hydroxypropyl methylcellulose) * Guaranteed to provide relief * 36 Vials of. 01 fl. oz (.3m L)