My cats just are not very interested in catnip, but if my son goes for workout at the gym and consquently leaves his shirt lying in the bathroom floor, my cats go simply wild, both of them, it is always only his shirts, we figure they love the smell of his sweat and deoderant mixed together, he is a lynx man,(excuse the description) i jokingly tell him you should bottle that stuff as a new brand of catnip, honestly the cats go absolutely bananas,smooching it and rubbing on it, like other cats do with catnip.