I use this care products since I'm wearing contact lenses (10 years) and have never had a problem with it. After I've never tried another product, I have no comparison, but it is that I am completely satisfied with the cleanability and tolerability. I must here, however, also say that my eyes are relatively insensitive. Now to the nitty gritty, the only on the packaging and in this case specifically refer to the bottle: Some time ago, the bottles were changed, the new ones are now white, and since then the shutter closes the bottle from no longer tight. I can not tell if that's a problem for the sterility of the solution, but it is quite disturbing a bottle should fall again now. Especially if you go on the road, it is very troublesome, because the open bottles in your luggage almost always leak. I always give the bottles now in a bag, so my laundry nothing would collect from the liquid, although still living in me the uncertainty that once ausrinnt as much of the liquid that it might not be enough for the journey.