BeautySpaceNK Patchology FlashMasque Illuminate 5 Minute Sheet Mask, There's no reason to lack luster. Send essential ingredients like Vitamins C, Licorice and Grapefruit Seed Extracts straight to your skin. Designed to even skin tone and show off a healthy glow, this mask gives new life to your complexion. Traditional sheet masks take up to 20 minutes to work. But Patchology's advanced masque material accelerates delivery of essential ingredients.