THE EXPERT L.A.-based Tracey Cunningham keeps highlights and color fresh on Jennifer Lopez, Rebecca Romijn and Molly Sims.
EXPERT TIP If you don't have time to see your colorist, camouflage dark regrowth by spritzing Rene Furterer Naturia dry shampoo spray six to 10 inches away from roots. Brush to blend in powder. BUY ONLINE NOW Rene Furter Naturia Shampooing Sec, $23.
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