Is shampooing once a day too much? Is doing it once a week too little? Experts say it depends on a few factors.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Confession: I wash my hair almost every single day. I know, I know—it sounds like a cardinal sin for a ...

The age-old question: how often should you really wash your hair? Daily? Weekly? The answer, according to celebrity hair experts, depends on several factors, but some golden rules apply. While hair ...