Excellent Product
"I have purchased this a few times and the only caveat is that you need to switch it over to a new one as soon as you notice your eyes watering and not wait as it doesn't get any better. I'm a little slow but as soon as I purchase a new one, the matter resolves and it's obviously due to it being a high quality product that it goes off quicker than chemical filled brands so I'm happy to just replace more frequently as needed :) Highly recommend."