This stuff is not too bad or good. I have used it for 5 years for my first guinea pig and now with my new little piggy. This stuff smells weird in a bad way, right out of the package. It does not help much with the animal odors either. I change the cage every week and on that last day it smells really bad. I also use a lot of this stuff for a thick bed layer(3 inches) and it's expensive. I will retire this stuff and look for a cheaper alternative.