4. Give your hair its 'do

( HANDOUT / January 13, 2010 )

"Winter hair can often be described in three words: limp, lifeless, and static-y," Kirby said.

If your hair looks dull and dry, shampoo with a moisturizing formula twice a week and follow with a rich conditioner.

"If limpness is a problem, take the opposite approach: apply a lightweight conditioner only from ear-level to the ends. Then, once hair is dry, apply a little dry shampoo at your roots. The powder adds texture to strands and helps plump them up." And unless you have very fine hair, do a deep-conditioning mask once a week.

To tame static, apply a touch of hairspray on a natural-bristle brush and smooth it through from roots to ends.

To try: Redken All Soft Shampoo, $13, matching conditioner for dry/brittle hair, $14 at redken.com; John Frieda Collection Luxurious Volume Conditioner, $5.99 at drugstore.com, for a lightweight conditioner; and Frederic Fekkai Au Naturel Dry Shampoo, $23 at sephora.com.