A short night? Disturbed sleep?...GUERLAIN My Super Tips Midnight Secret Late Night Recovery Treatment ensures that you wake up looking beautiful. To fight against signs of tiredness on the face, Guerlain Research has developed Hydronoctine, a complex whose active ingredients allow your skin to recover more quickly during the night. They boost the microcirculation and cell oxygenation and offer a decongesting effect, while limiting the harmful effects of free radicals.* With a few drops of this \"sleep elixir\" and a few hours\' rest, traces of fatigue seem to miraculously disappear and your complexion looks radiant. *In vitro test