The flea sprays and dips listed as "for kittens" which I have seen have all been pyrethin-based. What I have used to spray for fleas is the dip diluted and put into a spray bottle (available at any plant store or K-mart, etc). Then I know I am spraying something that is safe for the ferrets and cats, since I can use it directly on them. Also, I prefer using just this now as the 20 month old rug rat likes to run everywhere the cats and carpet sharks go. -- Mike, Erica, Ian -- Inigo, Buttercup, Fezzik, Alexis, etc. [Posted in FML issue 0876]