Get Hollywood Hair Color:
Go Lighter, Darker, Redder! Find Your Perfect Celebrity Shade
Go Darker Like Nicole Kidman
MUST-HAVE KIT Kelly Van Gogh Root Rehab 4RO Light Red Orange Brown, $39; spacenk.com. (This can treat the whole head or just the roots.)
PRO TIP Roots are the big concern for redheads going darker. “Maintain them every few weeks, or it will look odd,” advises Lorri Goddard-Clark.