It does and it doesn't. Not all cats will respond to cat pheromones the same. Some will be very happy with them and "Calm down", others will act oblivious and still react in their normal undesired behavior.
Bella, one of my cats, seems to react positively (as in calming down) or not acting as nervous once the spray is used near her. My other cat, Brandy, still acts aggressive and mean. But then, I'm starting to think she's a difficult and stubborn case. 8O :lol: Still love my little nut job though. :luv
'Chelle