I've been a loyal Secret antiperspirant user. And I sometimes use Certain Dri to really stop the wetness. Upon closer inspection of the labels on the bottles of antiperspirants on the store shelves, I found that the ones I like best have very high amounts of Aluminum Zirconium. So I set out to find the best NATURAL deodorant. Here’s what I’ve learned about clinical strength deodorants and natural deodorants.