Dandruff isn’t exactly the most glamorous of all hair topics, but hey, if you have hair, it's possible you've had dandruff at some point. Maybe you're dealing with it right now. The condition "is a rash that typically develops in the scalp, characterized by redness, itching, and flakes," Joshua Zeichner, director of cosmetic and clinical research in dermatology at Mount Sinai Hospital in New York City, tells Allure. It is caused by high levels of yeast on the skin that promote inflammation. Dandruff tends to develop on those with oily scalps rather than dry ones, and triggers such as stress, infrequent shampooing, as well as eating certain foods (spicy dishes and sugary treats) make it more likely for flakes to show up. Fortunately, treating dandruff can often be as easy as picking the right shampoo. We've got 12 dermatologist-approved recommendations that'll help you say bye-bye to flakes for good.
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