Pestell LifeMate Clumping Cat Litter contains a special PH indicator in the litter that can help identify common feline urinary issues before your cat gets symptoms! The PH of your cats urine can indicate many things, ranging from infections to diabetes, and this great litter changes color whenever your cat has a PH that is too high or too low. With the help from this litter, you can monitor and get your cat to a veterinary professional before issues arise!