Individuals who have used standard deodorants and antiperspirants for years are likely to have produced excess bad bacteria in the armpit, which increases odor and causes more sweating. Just by switching to a natural deodorant like Human Essentials will start the detoxifying process. If you notice you are experiencing rashes, excessive sweating and odor while transitioning this is normal. Most humans take about 14 days to rid their pits of the bacteria build up. Be patient and feel free to email us if you have any questions. vide the answer to the question here.