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Not every two days, not every four days: how often should you wash your hair, according to a dermatologist?

Scalp trouble starts silently. It shows up as grease, itchiness, faint odor—and then panic when hair looks dull and lifeless. Many cling to the myth that frequent washing “damages” hair or makes it oilier, but dermatologists insist the opposite. The real danger is neglect: residue, sweat, and microbes thrive when we let our scalp sit too lon… Continues…