Keep an eye out for certain ingredients
As mentioned earlier, if your skin is sensitive, it's a good idea to avoid deodorants with ingredients like synthetic fragrances and dyes, baking soda, essential oils, and drying alcohols. They're all considered potential skin irritants by derms.
“Alcohol can be drying and irritating to the skin, baking soda creates an alkaline environment—raises the pH of the skin—which results in redness and irritation," says Sarbaziha. "Artificial fragrances can also lead to skin irritation, while essential oils may cause sensitivity or allergic reactions.”
Consider skipping aluminum
Speaking of potentially irritating ingredients, aluminum salts, the active ingredient in antiperspirants may also be a trigger for ultra-sensitive skin types, so skip it if you're noticing your antiperspirant is causing discomfort under your arms.
Patch-test first
Everyone's skin is different, and even deodorants made without traditionally irritating ingredient can cause redness and itchiness in some skin types. I always recommend my patients test their deodorant on a small area of skin before using it all over the armpits to check for any potential allergic reactions or irritation, says Dr. Sarbaziha.
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