Heat styling tools, brushing, chemical coloring, the elements, under-washing, over-washing and skipping the six-to-eight-week threshold for trims are the myriad ways consumers damage their hair every day. But Fresha is pouring on another overlooked culprit: hard water. The booking platform says as high as 85% of the US has hard water. Major cities like Indianapolis, Las Vegas, Minneapolis, Phoenix, San Antonio and Tampa are notorious for having the hardest water in the country, says the platf...