... oil, Eucalyptol, Peppermint oil, Menthol, Tea Tree oil... Cineol 99% (Eucalyptol 99%) CompositionEucalyptol comprises up to 90 percent of the essential oil ... other aromatic plant foliage. Eucalyptol with a purity from 99.6 to 99.8 percent can be obtained in large quantities by ...