Post-Summer Skin and Hair Rehab

It may seem counterintuitive to use a scrub on sun-damaged skin, but it's actually the first thing you should do, says Ariel Ostad, M.D., a dermatologist in NYC. To maximize your moisturizer you've got to shed that dead layer so products absorb deeper into skin. Derms suggest using a mixture with small grains, which are less irritating. We like Eau Thermale Avene Gentle Body Scrub. Rough areas (think elbows and knees) can handle a more intense salt-based scrub.

• Eau Thermale Avene Gentle Body Scrub, $20, available at aveneusa.com