I have read many reviews here and have to say that many have not understood how it comes about that a spectacle is clean. If the glass remain the glasses cleaning streaks, it is not always the eyeglass cleaner to blame. At the beginning wanted to give even one star because my glasses were not clean. So I thought what I bought this stuff, but then I have a very expensive Brillenputztuch gifted and behold the spectacle was super clean with the same cleaner. It is not just the glasses cleaner, but also on Brillenputztuch. Buy yourself a very good lens cloth, best large 35 cm long and wide attempts so, you will see the glasses are super clean. Not every lens cleaning ink matches any eyeglass cleaner. This is so if I buy with a good camera and lens bad, then I can not complain that the photos are not great because it is just not only to the camera, but on the combination camera + lens. So it is with the lens cloth and the combination of glasses cleaner. For me it was the lens cloth and not on eyeglass cleaner. The glasses cloth must be washed regularly as prescribed. Try it out, buy the cleaning spray with an optician Brillenputztuch! I have had good experiences with the Zeiss cleaning spray.