I've tried lots of natural deodorants. This is the best. The rock deodorants work, but are kind of inconvenient as even the roll ons are wet. I like a stick deodorant so I don't have to wait for it to dry and it just feels nice and creamy and soothing instead of drying. The rock crystal deodorant tends to dry the skin plus it still contains aluminum, the potassium "alum" is aluminum. This one contains silver which is supposed to be better.