Red is the rarest hair color, but to understand why that’s the case, you need a basic grasp of the science. There’s a lot ...

They walked out sporting Honolulu blue hair and highlights. On Monday, Dy'nfly, a "pop-in, pop-out hair color bar" began offering fans a chance to dye their hair Honolulu blue at its six locations ...

Celebrity colorists share their favorite copper hair hues. They say blondes have more fun and that brunettes do it better, but don’t write off copper queens so fast. This fiery hue—which can range ...