Loss of density makes hair harder to style because the hair doesn't support itself as well, says Kevin Mancuso, creative director at Nexxus.

WSJ: Old Hair Days: Products to Help Manage Gray and Thinning Hair

The key to understanding Saint-Julien is to try and think of the style of wine as somewhere between the perfume and elegance of Margaux and the power and density of Pauillac.

WSJ: Will Lyons on Wine: Journeying Into the Heart of Bordeaux