I have been using "natural" deodorants for nearly 20 years. Most of them of course still contain questionable ingredients and very few of the truly natural ones are effective. Basis Deo by Lavera is by far the best I've ever tried, and even after using it exclusively for 4 years, it is still completely effective all day. The scent is very mild - okay for women and men. One roll-on lasts me almost 6 months, so it is cost effective as well. Even if you have been using propylene glycol based deodorants and think you can't do without that toxic chemical to stay smelling good all day, this is worth a try.