Ultra Scented contains a moisture release fresh scent with no perfumes. There is no scent until after the litter is used. Ultra Scented Litter is the same great formulation of Ultra Litter, with the addition of fresh scent. Formulated with a combination of heavy non-tracking granules and medium grain clay, scent is activated through your cats use of the litter box. The result is an excellent clumping litter that prevents moisture from reaching the bottom of the tray while providing a clump that will not break down.