I had no idea, but it turns out that almost all of us have been applying deodorant the wrong way our entire lives!
To be more specific, we are putting it on at the wrong time of the day for maximum effectiveness.
According to a 2009 article on Consumer Reports, the best time to put deodorant on isn’t in the morning, but at night.
Unless you suffer from nightmares or are sick, most people don’t sweat very much while they sleep. This leaves the sweat ducts in your armpit clean, dry and open. But that’s not all…
Deodorants with aluminum-based active ingredients will actually get pulled into your sweat ducts, plugging them with anti-perspirant.
Once the pores are plugged, the antiperspirant basically tells your sweat glands not to sweat, and it’s there to stay.
By the morning, you can wash off the deodorant completely while the active ingredients stay inside the pores, keeping them shut for 24 hours or longer.
The strategy keeps you drier in the morning and throughout the day as the deodorant is already activated. When you apply deodorant in the morning, you risk the antiperspirant being washed off by sweat before it has time to become effective.