To firm a sagging neck

There’s no need to hide under a turtleneck! Applying a mask that’s made with caffeine can firm up loose, wrinkled skin in the neck area and help slim a double chin. “Caffeine’s diuretic properties draw water from the skin for a temporary skin-tightening effect,” explains Rhonda Klein, M.D., a dermatologist in Norwalk, Connecticut. “It also has anti-inflammatory properties that help reduce any puffiness.”

For a more contoured neckline for up to 12 hours, make your own caffeine-infused neck mask. To do: In a small bowl, combine 1⁄2 Tbs. of coffee grounds, 1⁄2 Tbs. of brown sugar (it exfoliates and increases cell turnover) and 1 Tbs. of liquid coconut oil (its fatty acids deeply moisturize). Massage the mix into skin from the jaw down to the neck; let sit 15 minutes, then rinse. Store leftovers in the fridge for up to 14 days and use whenever you want to look your absolute best.