"Even our super finicky cat eats this, when mixed into her food or sprinkled lightly over her kibble. No more hairballs! Ran out awhile back and didn't reorder right away; within a week, hairballs were suddenly a problem again. I'm surprised that this is so effective for avoiding hairball issues (along with a primarily raw food diet & regular brushing). It has lessened the dander & shedding on our shorthair cat that eats more kibble than raw - kibble results in lots more dander and more shedding for our 2 cats." -  MST