by Rachel Nussbaum
a Boston-based dermatologist, Jeffrey Dover, M.D., advises the following.
Antiperspirants actually work much better if they’re applied at night.
Antiperspirants target sweat production with aluminum compounds, temporarily plugging your sweat ducts to keep things dry.
Yasmine Kirkorian, M.D., a clinical assistant professor of dermatology at George Washington University’s School of Medicine and Health Sciences, confirms this.
It’s better to apply antiperspirants at night because our natural sweating rate is decreased. Using it in the morning is like trying to plug a dam as water rushes in; applying at night builds a stronger dam before the storm hits.
Technically, deodorants and antiperspirants are different. Deodorant is basically a fragrance fixer-upper: It covers up body odor. Antiperspirants target sweat production.
The night is right. If you want your antiperspirant to work at full capacity, try applying it at bedtime.
Keep the deodorant going. Apply a morning swipe. There’s no downside to frequent application.