Photograph: Nena FarrellIt's fun that the HigherDose hat really does look like an actual hat. There are other devices we're testing that look straight off a Star Wars X-Wing, but I could easily wear the HigherDose hat out in public and get zero looks or questions. You can also remove the battery pack easily if you want to wear the hat without any tip-off that it's a gadget. Growth ChartPhotograph: Nena FarrellI took a quick, crappy picture my first week of using the HigherDose hat. My scalp looks better, and the overall texture of my hair looks smoother.