It sounds crazy, but reversing your shower routine will keep your hair from looking limp and flat, according to Philip B., celebrity hair and scalp expert. "Conditioner does nourish the hair but can also weigh it down," he says. "If you shampoo after, it will whisk away any residue. Clean hair is bouncy hair!"
Biolage Volumathérapie Full-Lift Volumizing shampoo ($15) and conditioner ($16); biolage.com for salons.