Has a big effect!
This calming supplement has had a huge effect on the first cat I've tried it on. He's a dominant half Burmese boy who loves people but is the boss of all the cats. After I overcrowded the house with too many rescues, he was spraying, hissing/swiping at other cats & generally stalking around in a bad mood much of the time. After about a week on the Zylkene he was so mellow that I was actually worried and put him on one capsule each 2nd day instead of every day. This seems enough to maintain him. I still don't know how these ingredients can make such a big difference but I've begun some other stressheads on them too now. The only problem is that they can't be pill-popped so you need to be sure they've eaten all the liquid you've put it in, so the dosage isn't very exact. Otherwise it's great!
