Dr. Elsey’s Premium Clumping Cat Litter is made from 100% bentonite clay for maximum clumping with ideal granule size. It is 99.9% dust-free and hypoallergenic, making it perfect for allergy sufferers. The litter offers hard clumping to prevent moisture from reaching the tray, superior odor control with natural ingredients, and low tracking to keep litter in the box. Dr. Elsey’s, founded in 1987 by a veterinarian, specializes in products that meet the health and behavioral needs of cats.