Nioxin's new leave-in hair thickening treatment, Diamax, officially launches in salons nationwide in February 2012. However, you don't have to wait for yours because Nioxin is giving away $1 million worth of product to consumers and stylists from December 1, 2011 to January 2, 2012. Just visit the website and enter for your chance to win! —Kristen Heinzinger
