Winter air and dry heat from blasting furnaces can leave your hair looking less than flawless. Style Editor Jon Jordan shared his tips on combating winter frizz. He said if you’re looking to tone down brassy tones and maintain dyes, purple shampoos will help retain the vibrant color. If you’re looking to enhance darker tones, try dark brown shampoos. Jordan also gave a few tips on promoting general hair health, including haircare vitamins, and nourishing shampoos.