We asked a dermatologist to break down just how often you should be shampooing your hair.

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Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Your hair can make a memorable first impression. A blown-out head ...

Add Yahoo as a preferred source to see more of our stories on Google. frantic00/ iStock/ Getty Images Plus via Getty Images Nothing says chic and effortless like the updo. It's the quintessential ...