If you’re dead set on coloring your own hair, proceed with caution if you’re tempted by that $15 box dye. No matter the shade ...

New York Post may be compensated and/or receive an affiliate commission if you click or buy through our links. Featured pricing is subject to change. Get to the root of your hair color problems from ...

Forbes contributors publish independent expert analyses and insights. I write about retail and the forces that are redefining shopping. L'Oréal's Colorsonic, left, and its components at right, ...