You’ve probably wondered how often you need to wash that (sometimes greasy, sometimes not) hair of yours. The question is a vexing one. It’s so common, in fact, that it’s the third suggestion that pops up when typing “how often” into Google (following queries about showering and pooping).
Outside the shower, our scalps gradually get shinier, darker, and more oily. So why does it happen, and how often should you wash to keep the grease at bay?
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Courtesy : Roshan Pastakia