NEW! Hangover Inhaler: The quick, ultimate pick-me-up for headache, nausea, regret, and guilt. Contains essential oils of NEROLI, PEPPERMINT, MELISSA, MARJORAM, VETIVER Inhalers are a wonderfully simple alternative for providing the benefits of essential oils. No fuss, no mess–simply remove the cover and inhale as often as needed. Inhalers last 6-12 months depending on amount of exposure to air.