“Japonica essential oil prevents the overproduction of melanin, causing dark spots,” says Ariel Ostad, MD, dermatologist and fellow of the American Academy of Dermatology. “It could definitely be an effective, natural alternative to hydroquinone, which can cause dryness and irritation.” Researchers hope their work will lead to more skin care products with the oil. For now, try Lancôme Huile Douceur Remove-All Deep Cleansing Oil Face & Eyes ($37; lancome-usa.com), which has Japanese cedar bud extracts, and check out thesetips to prevent age spots. More from Prevention: Solutions For Brown Spots
