Midnight Secret My Supertips, the secret formula by Guerlain to recover from short nights of sleep. Its cocktail of decongestant active ingredients erases visible signs of fatigue and awakens the skin to smooth wrinkles, provide a fresh and well-rested complexion. Do not go to bed without it! How is it used? In the evening, after cleansing the skin, apply Midnight Secret to the entire face and neck. To take a more intense recovery break, cover your face with your hands and breathe in and then breathe out while gently pulling your hands away.