Deodorant/Antiperspirant Spoiler Results

My experiments strongly suggest that SOME natural deodorants that don't contain aluminum such as Lume and Nuud significantly decrease bacterial growth in my armpits. They also banished BO for me. Secret antiperspirant also did a great job reducing bacterial growth but does contain aluminum. I've also discovered that BO does not come out of a shirt when washed on cold. The BO can then reactivate when you wear the shirt again, and it warms up. So sometimes YOU don't stink, but old BO in your shirt does. --Annie Pryor, Ph.D.