DRY SKIN? TRY A MOISTURE ‘SANDWICH’

With age, our skin loses its ability to retain hydration and plumpness. To the rescue: moisture sandwiching. “Mature, dry skin can benefit the most from this technique, which is layering on three skin-care products from thinnest to thickest,” says New York City dermatologist Dendy Engelman, M.D. “That way, the molecules in the thinner formulas are able to penetrate skin deeper, enhancing skin hydration.” And in the middle of the “sandwich,” she advises using a hyaluronic acid serum since it can bind up to 1,000 times its weight in water to make skin look extra bouncy and supple.

◆ TO DO: Begin with a water-based fa facial mist, like Avene Thermal Spring Water Mist (Amazon.com). Next, apply layer two, a serum, like The INKEY List Hyaluronic Acid Serum (Sephora.com), and close the sandwich with your favorite moisturizer. Dr. Engelman advises using a thicker one, like Cetaphil Deep Hydration Healthy Glow Daily Cream (CVS.com), ( to lock in the layers.