So we have six cats and use both this normal hygiene litter and clumping litter. If it were up to me I would only use clumping litter, as can the litter significantly Besse clean, dusty, and it is also less productive, but our three ladies refuse by all means go with clumping litter in the toilets. Why they do not like it we do not know well, but if you prefer to normal litter they got it and Thomas litter is there exactly correct. Our Cat Ladies can only recommend it so.