PrettyLitter was developed by a team of veterinarians and scientists specifically for cats.
Our litter is made with Silica Gel, which you may be familiar with from other packaged products. Silica Gels are inert, clear crystals made from naturally occurring minerals. Just as it's safe to place in a bag of your favorite jerky, it's safe to have in your cat's litter box.
Curious about the "do not eat" print on silica gel packets? Those are not recommended to eat because the bags are considered a choking hazard. While we would never suggest ingesting litter, the gel crystals are household-safe. The litter is not absorbed by the bowel and does not swell in the presence of humidity.
Often, silica gel in cat litter is confused for crystalline silicate, which is found mostly in clay litters and classified as hazardous material by the OSHA. No crystalline silica is used in PrettyLitter or any other silica gel based litter.