Going too long without washing your hair can be bad for your scalp (Stock Image) (Image: Getty Images/iStockphoto) Washing your hair might seem like a chore, but one doctor has warned against leaving it unwashed for more than a few days due to some rather unsavoury consequences. Board-certified dermatologist Dr Jenny Liu took to TikTok to warn that neglecting your scalp could be detrimental to your hair health. Her video's caption stressed "scalp care is skincare".
Dr Liu disclosed the unsettling reason why you should "never go more than a few days" without washing your hair, debunking the popular belief that hair can 'train' itself to be less oily. She insisted it's "completely a myth that our hair and scalp just cleanses itself". According to Dr Liu: "We know that sebum, dead skin build-up, all of that basically contributes to Malassezia yeast overgrowth [a fungal skin condition], that can lead to dandruff, as well as inflammation.
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