Ingredients: Lavender includes 100% pure Lavender Oil Peppermint includes 100% pure Peppermint Oil Eucalyptus includes 100% pure Eucalyptus Oil Lab test Guarantee: Each essential oil is thoroughly GC/MS tested to ensure that it is absolutely 100% pure, no fillers. Diffuser Instructions (diffuser not included): Add water to the fill line of the diffuser. Add just a few drops of essential oil to the water. Reattach diffuser water well cover. Replace lid and turn diffuser on to begin dispersing aroma and cool mist into your room.