Catnip (Nepeta cataria) is a natural herb that attracts and stimulates cats, causing active, playful behaviors and overt signs of happiness and relaxation. About 65% of cats respond to catnip, the degree of sensitivity varying between individuals. If your cat likes catnip, they will start showing it when they are a couple of months old. This concentrated extract of pure catnip is a great training tool for cats. A single coating will stimulate your feline to play... (rather than to attack your home furniture!) Works great on cat toys, scratching posts and fabrics.