This is Space Kitty Express' proprietary blend of 5 different cat herbs. This blend isn't just a bunch of different oils and some silver vine powder sprayed on a bunch of catnip, this is an actual mix of raw herb components, Tatarian Honeysuckle, Organic Lemongrass, Organic Valerian Root, Organic Catnip, and Silver Vine Fruit and Leaves. If your cat doesnt react to this blend, they are likely one of the genetically-unlucky few that won't react to any Cat Herb.