Thieves® Roll-On is a legendary blend of purifying essential oils and is prediluted for topical application. Formulated with Clove, Lemon, Cinnamon Bark, Eucalyptus Radiata, and Rosemary, it is known for it's cleansing properties. I swear by Thieves whenever I feel a cold coming on or if I'm sick - it has amazing healing properties. This is unsealed, never opened.