CATSAN Hygiene Litter is made of unique mineral granules consisting of the finest natural quartz sand, purest lime as well as a highly effective mineral formula. Its fine pored surface absorbs moisture extremely fast like a sponge, safely locking it in. The unique natural mineral composition prevents the development of odour three times more effectively than any other conventional cat litter. It is low dust, non-scented and does not contain any artificial additives.