Mandelic acid deodorant may also be worth a try if you’re allergic to an ingredient that’s found in mainstream deodorants, such as aluminum, fragrance, or baking soda, Thosani says.
But mandelic acid deodorant is not for everyone. For instance, since AHAs are natural exfoliants, some may find them drying or irritating.
“If you have inflamed skin in the underarms from eczema, daily shaving, or razor burn, or extremely sensitive skin, the mandelic acid may be too harsh, since the skin barrier is compromised,” Thosani says.
Anyone with sensitive skin should perform a patch test first by applying a small amount of the product to the inside of your wrist or the back of your ear and checking for any adverse reactions, such as irritation or a rash, Green says.
Green adds that these deodorants also might not be great for someone with excessive sweating (hyperhidrosis) or people who live in hot and humid climates, since mandelic acid deodorants don’t offer antiperspirant benefits. “When sweat production increases, the acid’s effectiveness can be compromised because it may be diluted or washed away by perspiration before it can work,” Green says.
Finally, it’s best to avoid mandelic acid deodorant if you have an almond allergy, Green says.
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