Jordana Brewster's Best-Kept Secrets Will Become Your Life Guide

"I just got highlights so I asked the hairstylist that did them, Nina [Kairouz] at Mare Salon [in West Hollywood], and she recommended Shu Uemura Art of Hair Color Lustre and Urban Moisture collections, so I got everything. I got this deep-conditioning mask [Shu Uemura Art of Hair Urban Moisture Hydro-Nourishing Deep Treatment Masque, $68], which I love and I use once a week."

"I think not washing your hair and not drying it more than like two or three times a week, so then the natural oils just soak in. If you get a good blow out, you really don't need to wash your hair that often. Dirty hair is good to style. If you're going to do a ponytail, dirty hair is great. When I'm working out a lot I do have to wash it more often, but dry shampoo works so well, too."