Aristopet Catnip Spray is made with concentrated catnip oil to stimulate exercise and play. The active ingredient in catnip plants (nepetalactone) has been carefully extracted from leaves to create Catnip Spray for everyday application. The effect of catnip lasts up to 15minutes, is harmless, non-addictive and natural. Cats of reproductive age are more sensitive to the aroma of catnip than kittens or older cats.