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This review is from: Dorwest Herbs Organic Valerian Compound for Dogs and Cats 30 ml (Personal Care)
I can't definitely say it calmed down our cats, but I can say things didn't get any worse. the liquid does have a distinctive smell which some of our cats did sniff at. And when I put a drop on their front paw they did lick it off eagerly. So not sure, but as we know, no two cats are the same, so I'd say worth a try.