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Dr. Oz’s Big Hygiene Experiment: Do I Really Need to Wash It?

Originally aired on 7/19/2016

The average woman spends 40 minutes washing, drying, and styling her hair every morning but is it necessary? Dr. Oz enlists Buzzfeed's The Test Friends to see what happens when you don’t wash your hair or use dry shampoo for seven days.

Guests: Lexie Sachs , Lisa Leslie-Williams , Steve Weatherford , Carlo Fillippon , Adam Grant