Forget all about those expensive face creams and lasers—it seems all you need to do to appear younger is spritz on a little eau de grapefruit. Yes, grapefruit. According to a study by the Smell and Taste Institute in Chicago, men perceive women to be up to six years younger than they actually are when they catch the scent of the citrus fruit. (Sorry guys, the inverse doesn’t work.) Jimmy Choo, Guerlain, Sephora, and The Body Shop all offer grapefruit-scented perfumes that are sold in local stores.