Coloring your hair at home is about to get a lot easier thanks to L'Oréal's new Colorsonic device. Resembling a curling iron with a brush head at the end, the Colorsonic uses cartridges to dispense ...

Coloring hair at home comes with plenty of struggles. First, there’s the task of playing cosmetic chemist and mixing the color, worrying that if you don’t blend the formula just right it might look ...