"We're not really changing the natural color," her longtime colorist Michael Canalé told E! News. "We're making a color that's suitable to go along with that color."
Jennifer Aniston's color is a result of the Color Correcting Technique, which the beauty pro launched in 2000. The process includes highlighting and blending the hair in multiple phases in the same sitting. "We actually highlighted it, then we went back and blended the highlights into her hair. We dried it, then went back [to highlight] it again. So, we went from a medium brown to a light golden brown, then into a sun-kissed dark blonde," he explained.