bought in store, i have used at least 6 different deodorant brands and this has been the most effective. especially considering this deodorant has zero baking soda. i go all day no odor and the scent in the stick is not too strong. i live in a really humid and hot environment and this still keeps me odor free and to a great extent dry. the only time i have ever needed to reapply is after a heavy workout. will definitely repurchase :)