Adverse reactions diminish with lower eucalyptol content. Measurable levels of eucalyptol and pulegone were found in the menthol-flavored varieties for all manufacturers. Fifty-two components were identified in the essential oil, the main component being eucalyptol (21.8%). The content of eucalyptol is 90% of eucalyptus oil, leading to its name. Eucalyptol may be toxic if ingested. Essential oils, found in Listerine mouthwash, contains eucalyptol, menthol, thymol, and methyl salicylate. The most abundant component found in laurel essential oil is 1,8-cineole, also called eucalyptol. Eucalyptol is used as an insecticide and insect repellent. The oil contains camphor, thujone, and pinene, the dominant component being eucalyptol. Eucalyptol is a natural organic compound that is a colorless liquid. Eucalyptol has a fresh mint-like smell and a spicy, cooling taste. Eucalyptol forms crystalline adducts with hydrohalic acids, "o"-cresol, resorcinol, and phosphoric acid. In higher-than-normal doses, eucalyptol is hazardous via ingestion, skin contact, or inhalation. Wormwood, rosemary, common sage, "Cannabis sativa", and other aromatic plant foliage contain eucalyptol.