Not glamorous, but common: how to manage dandruff at home and when to get help

Experts don’t know exactly what causes dandruff, but if you’re seeing light flakes on your scalp, over-the-counter products can help You spy a scatter of white flakes on your collar.

Or you’ve got an itch that won’t quit, no matter how much you wash your hair. Dandruff isn’t glamorous, but it’s common: about half the world’s population has it. An itchy, flaking scalp is rarely dangerous, but it can be annoying.…