L'Oréal Vive Pro Color Vive Hi-Gloss

This moisturizing shampoo and conditioner cleanses and glosses dry strands, and leaves behind fade-proof UV filters. So relax all you want at the pool: "Color won't budge," says Mischa Barton's stylist Erin Anderson. Plus, the subtle smell "doesn't compete with other scents," says January Jones's hairstylist John Francis.