I wear contact lenses for many years - both soft and hard - and had to do with various cleaning agents. My first soft contact lenses I had cleaned in the palm. However, I then had to soon buy a protein remover to because I had deposits every day. Eventually, I had be persuaded to hard contact lenses out (turned talking) for health reasons. Supposedly not stick hard lenses directly to the eye, so that the old scuffed retinal particles (the somewhat turbid make after some time the contact lenses) "out" can and the view is clear ... The cleaning expenses were even greater as you these Sucker needs and if you take has a particle in mind is what's going on ... Now I am back with soft contact lenses and most of this means of purification. So far I'm really overwhelmed. It cleans, disinfects and removes proteins. The contact lenses are really fresh every day. Better is hardly :)