Just when you want your skin to look flawless for all those holiday party photos, the added stress can cause flare-ups of everything from acne to psoriasis.

But in a bit of delicious science news, a new study suggests a certain sweet ingredient might be an effective psoriasis treatment. And the best part: It will be everywhere this holiday season.

“Psoriasis is a condition in which your immune system gets angry at your skin leading to characteristic red, scaly plaques,” Joshua Zeichner, director of cosmetic and clinical research in dermatology at Mount Sinai Hospital in New York City, tells Allure. An estimated 7.5 million Americans deal with it, according to the American Academy of Dermatology.