John Paul Mitchell Systems will enter 2,000 select Marriott hotel doors across North America—a first for the hair care line. According to reports, 24 million units of four unisex Paul Mitchell’s Salon Classics products be available throughout four Marriott brands: Courtyard by Marriott, SpringHill Suites by Marriott, Residence Inn by Marriott and TownePlace Suites by Marriott. For more on Paul Mitchell, check out Happi‘s Top 50 report in July....