Julia prefers to either have her color done at Romain Color in Paris (you must visit the site just to hear the sound of pixie dust sprinkling as you enter) or do it herself with John Frieda's Brilliant Brunette Luminous Color Glaze. I typically use ColorSilk but I am definitely going to try this. Think my hair will turn out looking like Julia's? I will let you know the results. And at approximately $9.95 per bottle it's hella cheaper than flight to Paris plus salon, bien sûr.