Don't share your deodorant or antiperspirant with anyone else!
According to a study by the University of Kansas, bacteria survive and even thrive on the surface of solid and gel deodorants and antiperspirants. And that could lead to a staph infection. Microbiologist Dr. Jack Brown analyzed 20 different perspiration products, and the bacteria managed to thrive on half the samples. That may not sound bad, but Dr. Brown points out that bacteria that’s harmless for one person can be hazardous to another – especially if one of the users has under-arm skin that’s either broken or irritated.