Thats because antiperspirants contain aluminum salts which the body absorbs to form a plug in your sweat glands.
The sweat gland recognizes that its blocked and stops producing so much sweat.
Additionally, Dr. Skelsey says you should apply antiperspirant to dry skin.

It causes a lot more irritation when your skin is damp, she says.
A lot of people only have to use it three days a week, she says.
She says to look for antiperspirants that contain aluminum zirconium trichlorohydrate (AZT).

Maryland-based dermatologist
Shop our three favorites below.
Its made to provide 48 hours of wetness protection.
It has twice the sweat protection of ordinary antiperspirant.

It has a 20 percent concentration of AZT.
It features motion-sense technology through smart fragrance-filled capsules that best when youre in motion.
It has a 19 percent concentration of AZT.

This set contains two antiperspirant sticks.
Because antiperspirants can be drying, one-quarter of this stick is moisturizing ingredients.
It contains 15 percent AZT.

Maryland-based dermatologist
This pack comes with two antiperspirant sticks.
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