Petlinks HappyNip Happy Hen 100% HappyNip Catnip Filled Cat Toy with our pure and potent catnip. HappyNip is an exciting blend of silver vine and catnip. Silver vine, a wild-growing herb foraged in the mountains of Japan and China, has a strong natural effect on cats, even some that don't respond to catnip. After extensive testing to find the perfect blend, HappyNip was created as an ideal alternative for finicky felines who need a little extra excitement! It's more potent than catnip and as pure as can be! Our catnip is always produced without chemicals or pesticides and grown on our own organic catnip farms!. Most cats respond to catnip with a burst of energetic activity followed by a perfectly calm mellow period. Our burlap hen has thick faux fur cats will love! Feathers and ribbon round out the excitement in this cutie!