Ever wondered what is in deodorant and antiperspirant? How does it work?
Well, antiperspirants contain aluminum or zirconium which closes our pores and slows the perspiration. Currently there is no definitive link between aluminum and any health problems. However, a link to breast cancer has been debated and high concentrations of aluminum have been found in the brain tissue of Alzheimer's patients.
Deodorants simply mask odor. They contain some chemicals that should be avoided such as formaldehyde and propylene glycol. The spray on versions use propellants such as butane and propane which are not exactly the best things to be inhaling.
There are "natural" deodorants available. As with anything else read the label to be sure. They don't work the same on everybody so be prepared to change brands and versions until you find one that works for you. I went through four different ones before I found one that worked well. They are not as strong as the regular ones so if you sweat a lot or feel that you need one between work and other activities carry an extra one with you.