A team of scientists and veterinarians work together to develop PrettyLitter. This means that there's been a lot of science and research has gone into developing this cat litter specifically for cats. Since it's made with a silica gel at super absorbent, it's safe for your cat to use. Also, the indicator sits in the formula that helps you identify your cat's health isn't absorbed into the bowl of your kitty. Also, you don't have to worry how about the presence of humidity causing any health problems with your cat.  Silica gels have millions of tiny for and each green of crystal. Since PrettyLitter absorbs really well, you won't have to worry about using as much litter as you normally do. That's why you'll notice the PrettyLitter box with so much smaller and lighter than other cat litters. Also, PrettyLitter says that their litters are 80% lighter than Trishna letters you'll find on the market.