Excellent product
We had a lot of serious aggression between 2 of our cats. 1 of them just constantly stalked the other and there were some very nasty fights. The cat that was being bullied had started to stay away from home for long periods of time and would leave the house as soon as we went to bed.
We tried Zylkene, we had 3 Feliway diffusers plugged in around the house but nothing was working and it was costing a small fortune on top of the Applaws dry food we were buying. My cats have been on Calm for less than a week and the improvement is dramatic. No more fights or stalking,no growling or howling and the spraying is massively reduced. I cannot recommend this product highly enough.
I was skeptical at first but this will be the only dry food I ever feed our 4 cats from now on.