All natural and biodegradable, Naturally Fresh is made with walnut shells, an annually renewable non-food agricultural product. Naturally Fresh Harmony Calming Cat Litter is infused with natural essential oils, providing mood-enhancing benefits for the whole family. The natural calming properties of lavender and bamboo essential oils leave homes smelling clean and fresh while helping to enrich the pet parent-cat kid bond. Naturally Fresh is virtually dust-free and low tracking so it stays in the box and doesn't stick to your cat's paws.