Technology Comes to Hair Brushes by L’Oreal

https://www.adweek.com/news/technology/loreal-made-smart-hairbrush-analyzes-beauty-habits-and-suggests-products-175350

Amazing way to sell hair products announced by L’Oreal. The hair brush listens to the way it works its way through the hair to report dryness and other hair characteristics. “Built-in sensors then determine if someone is brushing hair when it’s dry or wet while a gyroscope and accelerometer count the average number of brush strokes and measure the force used to brush hair.”