Crystal® is the world's leading natural mineral salt deodorant for a reason. It works to prevent odor while other products attempt to mask it or plug pores with aluminum chlorohydrate or aluminum zirconium. Crystal is a safe, healthy and totally effective natural antiperspirant. That's why millions around the world use it every day! So feel assured that when you use our products that we at Crystal® strive to bring you the best of both worlds; a product that not only works but is safe to use!