Shampoo myths you need to stop believing

<p>You've probably been washing your own hair for decades by now, right? You'd think you—and the other few billions of people on this planet—would have it down pat, but a Google search of "how often should I shampoo" yields more than 13 million results. Couple that with all the recent shampooing trends (read: co-washing, no-pooing), and suddenly, sudsing up is no longer child's play. That's why we asked top stylists (and one scalp expert!) to list the biggest myths about shampoo they wish people would stop believing.</p>